The eyes are healthy.

眼有黑點 眼睛有黑點 眼睛有東西在飄 眼球有黑點 眼睛看到固定黑影 眼睛黑點移動 眼睛 黑點 眼睛黑點 眼睛睇野有黑點 眼睛有黑点 眼睛有黑塊 睇野有黑點 眼睇野有黑點 眼有黑影 眼睛看到黑點 眼 黑點 眼睛有黑點怎麼辦 眼睛固定黑點 眼睛有黑點跑來跑去 眼睛見到黑點 眼睛出現黑點

Is a black spot in the eye a precursor to blindness? Ophthalmologist explains in detail the treatment and improvement of floaters

眼睛健康 /

Floaters are sometimes annoying, people with floaters will see "black spots" floating in their eyes, not painful or itchy and unable to rub open, when you look directly at them, they will disappear in an instant. Floaters come in different shapes, such as black dots, lines, circles, ovals, tadpoles, etc., especially when looking at a bright and clean background, it is easier to spot its presence. Floaters are a degenerative disease of the eyes, mild patients in general, as long as they are used to coexisting with black spots and floating objects in the eyes, daily life is not affected, they do not need to receive floaters treatment, but if the black spots or floating objects in the eyes are too large or too much, floaters suddenly attack or flash, so that vision is damaged, you should seek improvement methods, find an ophthalmologist for the treatment of floaters for consultation and surgery or laser treatment of floaters, otherwise, the longer it drags on, the more serious or blind!

What is floaters?

Floaters are medically a phenomenon of vitreous degeneration of the eye. The vitreous is a transparent gel located behind the lens and before the retina. Normally, the vitreous fills the entire vitreous cavity to support the shape of the eyeball. But with age, myopia and other problems, the vitreous will liquefy and shrink, forming turbid fibers, and these fibers will float around in the vitreous, when the light refracts these fibers, the patient will feel that there are black spots in the eyes, which is the precursor of floaters.

Illustrated floater lesions

Floaters are medically a phenomenon of vitreous degeneration of the eye. The vitreous is a transparent gel located behind the lens and before the retina. Normally, the vitreous fills the entire vitreous cavity to support the shape of the eyeball. But with age, myopia and other problems, the vitreous will liquefy and shrink, forming turbid fibers, and these fibers will float around in the vitreous, when the light refracts these fibers, the patient will feel that there are black spots in the eyes, which is the precursor of floaters.

Who is most likely to develop floaters?

Floaters usually become more common with age, so older people are more likely to have dark spots in their eyes. But in addition to age, other factors that may increase the risk of floaters include myopia, history of eye surgery, eye trauma or eye inflammation. According to clinical studies, high-risk groups for floaters include:

  • Middle-aged and elderly
  • People with high myopia
  • People with hypertension/diabetes
  • Have had eye surgery
  • Blows to the head, e.g. car accidents, divers
  • Other eye problems, such as eye inflammation

However, most floaters are benign, such as because of old vitreous degeneration, or excessive eye fatigue, there may be symptoms of floaters, as long as there are more black spots in the eyes, and the position is fixed, do not worry too much.

Conversely, if suddenly there are a large number of dark spots in the eye that have affected the field of vision or there is a flash, it may be vitreous peeling, resulting in pulling the retina to the hole or even falling off. This condition must be investigated immediately, for improvement, or for floaters.

Causes of floaters

The causes of floaters can be broadly divided into three types, namely physiological, degenerative and pathological.

  • Physiological

About 80% of floaters are physiological. Physiological floaters usually occur in people under the age of 40 or people who have been using their eyes for a long time, and most people will see black spots in the eyes, which are vitreous impurities that usually do not affect vision, and do not need to be treated immediately for floaters, and will disappear on their own over time

  • Degenerative

As we age, the vitreous body of the eyeball, like other organs in the body, gradually deteriorates. In this degeneration process, the vitreous body will shrink to form fine fibers, these fibers will float in the glass, when the light enters the eye, and these impurities refract, it is the black spots in our eyes.

  • Pathological

Pathological floaters are caused by eye disease or systemic vascular disease. The so-called eye disease refers to the retina under the pull or degeneration of the process of the retina in the process of tearing or degeneration, resulting in vitreous hemorrhage, and even retinal peeling, resulting in visual impairment, and in the worst case, permanent blindness. In addition, systemic vascular diseases, such as eye stroke, diabetes, hypertension or macular degeneration, if not paid attention to and actively treated, may also appear pathological floaters, patients should seek to improve floaters as soon as possible.

Complications of floaters – retinal detachment/tear

Although suffering from floaters is not a serious disease, retinal detachment caused by floaters is an emergency in ophthalmology. One in four people with floaters may have their vision affected by retinal detachment or a tear. Keep in mind that if you have these signs of retinal detachment due to floaters, including:

  • There are a large number of dark spots in the eyes in a short time
  • Unusual flashes
  • shadow
  • The view is blocked

This means that there may be cracks in the retina, and it is important to seek immediate medical attention for treatment, otherwise floaters will cause permanent damage to vision or even blindness.

How is floaters treated?

If you have benign floaters, you do not need to be treated immediately. When you notice dark spots in your eyes, you can try moving the eyes to let the fluid flow through the eyes so that the fibers leave the line of sight. Of course, some people can't bear the black spots floating around in their eyes, and their attention is often disturbed by black spots, which seriously affects their mood, so they can consider floaters treatment.

With current technology, the main treatment and improvement of floaters is laser therapy and vitrectomy.

First, laser treatment of floaters

This floater treatment is suitable for large and concentrated vitreous fibers, using laser light to break these fibers into smaller fragments, through these methods to improve and eliminate floater symptoms. The laser treatment is performed under local anesthesia without pain and the whole treatment takes only 15 to 20 minutes. However, not everyone is suitable for laser treatment to improve floaters, and if the fibers are loose or too close to the macula or crystals, it should not be performed to avoid complications such as cataracts or macular damage.

Second, vitrectomy surgery to treat floaters

Vitrectomy is performed by removing the vitreous inside the eye through a small incision and replacing it with a solution to maintain the shape of the eye. The procedure only takes about 10 to 15 minutes. However, vitrectomy does not necessarily completely remove the fibers, and if the surgery itself causes bleeding or retinal tears, new floats may form, so most physicians do not recommend this procedure to treat floaters.

Floaters improvement and maintenance methods

Once floaters occur, it is almost difficult to reverse, even after laser or surgical treatment, there is a possibility of recurrence, what we can do is to live peacefully with it, or we can improve floaters by the following methods to reduce symptoms slightly.

First, the daily maintenance of benign floaters

  • Avoid excessive eye use

PAY ATTENTION NOT TO OVERWORK THE EYES, ESPECIALLY 3C HEAVY USERS, YOU SHOULD LET THE EYES REST FOR 5 TO 10 MINUTES EVERY 1 HOUR, USE THE REST TIME TO BLINK, LOOK INTO THE DISTANCE TO RELAX THE EYES.

  • Good living habits

In daily life, it is recommended to reduce the time spent playing with mobile phones, especially to avoid staying up late at night to look at mobile phones, to ensure that you have enough sleep and do exercise in a timely manner, which is also a way to improve floaters.

  • Regular follow-up

Do not think that you have benign floaters can relax, floaters must be regularly checked to avoid other lesions, miss the best time for treatment.

  • Eye care diet

Foods with antioxidant effects, such as berries, green or yellow vegetables, carrots, soybeans, milk, and fish oil, should be consumed in your diet to help improve floaters.

2. Postoperative care and maintenance of malignant floaters

  • Medication treatment

After surgery, be sure to follow the doctor's instructions, remember to wash your hands thoroughly with soap before each medicine to avoid cross-infection.

  • Improve your lifestyle

Rapid eye movements and excessive eye use should be avoided for 1 week after surgery. Try not to read books, mobile phones, computers, TV, etc. during this period. In addition, it is recommended not to do strenuous exercise, climbing, diving, or flying, as these activities can irritate the eyes and affect the speed of postoperative repair.

  • Use an eye patch

During eye repair, it is recommended to wear an eye mask at all times to prevent collisions and avoid unconsciously rubbing your eyes when sleeping at night. It is necessary to ensure that the eye mask is clean when using, and it is recommended to wash and disinfect the eye mask daily to avoid wound infection due to bacteria.

  • Daily diet

In addition to avoiding irritating foods, it is also necessary to avoid eating legumes, because such foods are easy to let the nitric oxide in the blood run into the eyes, causing the inert gas in the eyes to produce flatulence and increase the pressure in the eyes.

  • Safe at home

Keep your home clean and tidy, reduce dust and avoid secondhand smoke, and do not change the layout of the home or place objects in the aisle during the recovery period, so as not to cause collisions or falls in unfamiliar environments and irritate the eyes.

  • Regular follow-up visits

In addition to following the doctor's advice for regular follow-up consultations after surgery, if you notice eye discomfort, such as persistent eye pain, sudden blurred vision, nausea, increased or larger dark shadows, etc., remember to consult your ophthalmologist immediately to avoid worsening of the condition.

How can floaters be prevented?

Although we cannot completely avoid the occurrence of floaters, we can slow down the aging of the eyes and reduce the chance of developing floaters through daily maintenance.

1. Develop good eye habits

  • AVOID EXCESSIVE USE OF 3C PRODUCTS (1 HOUR WITH EYES AND 5-10 MINUTES BREAK)
  • Works in sufficient light and stable without flickering
  • Avoid staying up late to increase the burden on your eyes

2. Intake of eye care nutrients

  • Carotenoids (dark green, dark yellow and red fruits and vegetables)
  • Anthocyanins (plum fruits)
  • VITAMINS (VITAMINS A, B, C AND E)
  • Omega3 fatty acids (fish oil)

3. Proper control of systemic vascular diseases (such as: diabetes, hypertension)

  • Maintain a balanced nutrition and reduce the intake of foods high in oil and salt and sugar
  • Regular exercise (jogging, cycling)
  • Have regular full-body examinations

Although most floaters can not be treated, they should not be completely ignored, and they must be checked regularly, and if symptoms are aggravated, they should seek medical attention immediately to avoid missing the golden period of floater treatment.

#眼睛有黑影飄來飄去 #眼睛黑點改善 #黑眼球有黑點 #眼睛里有黑点

Is a dark spot in the eye a sign of blindness? Read More »

Cover image_Comparison_Glaucoma_Macula_Cataract

【TREATMENT OF EYE DISEASES】GLAUCOMA VS MACULAR DISEASE VS CATARACT OPHTHALMOLOGISTS TEACH EYE DISEASE SYMPTOMS + TREATMENT METHODS

眼睛健康 /

Elderly people often have eye blindness, and may think that it is a degenerative problem that makes it difficult to see clearly, but have they ever thought that they may suffer from eye diseases due to eye lesions?

Eye disease symptoms

First of all, to distinguish whether vision suddenly or slowly decreased, visual impact is the middle range, the whole picture, or peripheral vision? And is there a feeling of pain in the eyes? So how to tell the difference between macular disease, cataracts and glaucoma? Taking cataracts as an example, the vision of the average elderly will slowly decline, and it will affect the whole picture. Macular disease, on the other hand, has a sudden and acute decrease in vision, affecting central vision. Glaucoma also slowly affects vision, generally affecting peripheral vision first.

These three diseases can be easily confused, and there are many ways for the elderly to check them. There is a kind of "checkered paper". Checkered paper is a kind of checkered paper, and the elderly can see whether the straight line has changed the curve by looking at the checkered paper to see if the straight line has changed the curve, and these conditions can determine whether there is macular disease. For other problems, an eye disease can only be determined through an ophthalmologist's examination.

How to heal?

There are generally two complications of the upper eye of diabetes, the main cause is hypoxia, resulting in angiogenesis. If angiogenesis occurs, those fragile blood vessels may have a condition that leaks, leading to vitreous hemorrhage or macular edema. To prevent this, it is usually necessary to inject eye drugs to prevent angiogenesis, thereby reducing hypoxia.

Cataracts are basically performed through minimally invasive cataract surgery, in which cloudy lenses are removed and implanted with intraocular lenses. Finally, glaucoma, with early treatment, the nerves can be controlled so that they do not continue to be damaged. There is no treatment for glaucoma, only testing, medication, surgery or laser to control intraocular pressure to slow down the damage to the nerves.

ELDERLY PEOPLE CAN PREVENT IT BY CHANGING THEIR DAILY LIFESTYLE, SUCH AS: LESS SUGAR AND LESS SALT; EAT FOODS RICH IN VITAMIN A, CAROTENE OR OMEGA FATTY ACIDS, BECAUSE OF ANTIOXIDANT EFFECTS; DO AT LEAST 30 MINUTES OF AEROBIC EXERCISE; DO NOT SMOKE. THE ELDERLY NEED REGULAR EYE EXAMINATIONS FOR EARLY PREVENTION AND EARLY TREATMENT. TRY TO AVOID ULTRAVIOLET RAYS TO IRRADIATE THE EYES TO PREVENT VARIOUS EYE DISEASES.

Source: Topic

What is glaucoma?
What is macular disease?
What is a cataract?
WhatsApp inquiry now

【Treatment of eye diseases】Glaucoma VS macular disease VS cataract Ophthalmologists teach eye disease symptoms + treatment methods Read More »

Cover image_Red eye pain_Hidden disease_Rheumatoid arthritis_Eye inflammation

【Eye inflammation】Red and painful eyes or reflect hidden diseases in the body Doctor: 80% of rheumatoid arthritis patients have eye inflammation

眼睛健康 /

Many doctors will use the eyes as a window to observe physical diseases, especially long-term patients, which diseases will affect the eyes?

Diseases that affect the eyes

Eye pain, redness, eye inflammation and other conditions, ordinary elderly people may feel, but if the situation continues, we will worry about other hidden diseases in the body, one of which is an autoimmune system disease, which will cause various inflammations in the body. The eye is also one of the affected organs, and if not looked at or treated, the eye's vision will continue to decline and there is even a risk of blindness.

Symptoms and treatment of immune system disorders

Immune system disorders occur in people of all ages, most commonly rheumatoid arthritis, xexia, ankylosing spondylitis, or lupus erythematosus. Taking rheumatoid arthritis as an example, patients may have low back pain, hip pain or inflammation, so that they have a sore back and a stalk. Calcification occurs due to inflammation. Joints will combine with each other, so that it is difficult to get up in the morning or want to bend over and reach for the toes, which will affect joint movement for a long time. First-line treatment is systemic and is usually prescribed by a rheumatoid specialist with oral anti-inflammatory drugs.

Steroids are generally used in first-line treatment, but if we use large doses of steroids, or if we continue treatment, we will generally switch to second-line drugs to reduce the side effects caused by steroids. Biologics and immunosuppressants are used as second-line agents to control long-term therapy.

Studies have shown that eighty percent of patients have at least one chance of eye inflammation in their lifetime, iritis is one of the inflammations, it will release cells, resulting in vision loss, and these cells, will bind to the protein in the eyeball, accumulate in the anterior chamber angle, resulting in the anterior chamber angle water failure to flow away, so that intraocular pressure rises, damage nerves and form glaucoma.

TO BE TREATED, BLOOD IS USUALLY DRAWN TO FIND INFLAMMATORY FACTORS AND X-RAYS, SUCH AS LUNG X-RAYS OR LUMBAR BONE X-RAYS, TO SEE IF THERE ARE LUNG OR LUMBAR BONE PROBLEMS. IF PRESENT, A SYRUP IS USUALLY GIVEN TO CONTROL INFLAMMATION (AN ANTI-INFLAMMATORY STEROID EYE DROP). IN ADDITION, TO SEE IF THERE ARE SIDE EFFECTS AND COMPLICATIONS, USE GLAUCOMA EYE DROPS TO CONTROL INTRAOCULAR PRESSURE, SO OPHTHALMOLOGISTS AND RHEUMATOID SPECIALISTS WILL WORK TOGETHER TO CARE FOR AND TREAT PATIENTS.

lotion

There are different types of potions, some potions are ordinary moisturizing potions, which do not help the condition, and sometimes delay treatment, and some potions have the effect of constricting blood vessels, but it is not controlling inflammation, so there is a chance to mistakenly think that the eye condition continues to improve; Finally, if the treatment dose is insufficient or the medication is not used for enough time, it will delay the treatment and cause irreversible problems in the eyes.

Coronavirus

Conjunctivitis is accompanied by respiratory infections, such as influenza or viral colds, which is actually one of the symptoms of new coronary pneumonia. The most common symptom of conjunctivitis is conjunctival hyperemia or redness and inflammation of the corn of the eyeball. Studies have shown that 30 new crown patients had a test during admission and found that one of them had symptoms of conjunctivitis, so it was closely related.

To prevent the new crown pneumonia, first of all, we must wash our hands frequently, wash with water and lobe liquid for at least 20 seconds, in addition, we need to maintain a proper social distance of 1.5 meters, and we need to maintain air circulation to protect ourselves in the new crown pneumonia.

Source: Topic

What is glaucoma?
WhatsApp inquiry now

【Eye inflammation】Red and painful eyes or reflect a hidden disease in the body Doctor: 8% of patients with rheumatoid arthritis have eye inflammation Read More »

Cover image_New coronavirus symptoms_Pink eye_Ophthalmologist Dr. Tong Man Kit

Is pink eye also a coronavirus symptom?

眼睛健康 /

Is pink eye also a symptom of the new coronavirus?

In the face of the new crown epidemic, everyone focuses more on epidemic prevention, infection symptoms and rehabilitation treatment, and less attention is paid to the relationship between infection and vision risk. It turns out that pink eye is also an early sign of the new crown pneumonia virus, and people are worried about whether droplets will be infected by falling into the eyes, whether wearing glasses has an effect on epidemic prevention, and other mysteries, the following are answered by ophthalmologists one by one.

Mild new crown pneumonia patients, common symptoms include runny nose, headache, fatigue, throat discomfort, cough, and even muscle pain, vomiting, diarrhea and other symptoms, there is a finger pink eye (medical name conjunctivitis) is also an early sign of the new crown pneumonia virus, which is true? Ophthalmologist Dr. Tong Man Kit explains: "Pink eye or conjunctivitis accompanied by upper respiratory tract infections (colds, flu, etc.) may also be signs of new coronavirus infection. A common symptom of conjunctivitis is hyperemia or redness and inflammation of the conjunctiva of the eye, a study published in the Journal of Medical Virology studied 30 patients admitted to the hospital with the new coronavirus, and one of the patients was diagnosed with conjunctivitis."

Pink eye can cause different eye diseases

According to the above study, although the risk of conjunctivitis in patients is low, in addition to conjunctivitis, the new coronavirus has been reported to be related to other eye problems, including episcleritis, uveitis, inflammation of the lacrimal glands, retinal and optic nerve inflammation, although also rare, but some of these problems may lead to vision loss.

People wear masks when they go out every day, but they are most worried that droplets of the new coronavirus will fall into their eyes and cause infection, Dr Tong said, ocular transmission has not been confirmed by research, but the mucous membranes distributed in many body cavities and organs, including the respiratory tract, are usually the most susceptible to infection with the new coronavirus and viruses. "The surface and inner eyelid of the eye are also called the mucous membrane of the conjunctiva, so if infected droplets fall into the eye, they may be susceptible to infection." Published reports suggest that severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2) may be transmitted through aerosol-conjunctival contact.

Goggle protection is superior

Thinking that glasses and sunglasses could block the barrier, it turned out to be "a misunderstanding", Dr. Tong said: "Neither glasses nor sunglasses can completely block respiratory droplets sprayed in your direction, but there are goggles that protect the sides and around the eyes, which can provide better protection." In fact, the mode of transmission of the new coronavirus is still thought to be mainly through respiratory droplets between people, but the virus can also survive for days on the surface. Therefore, touching an infected surface and then touching your eyes, nose, or mouth without washing your hands can cause infection, but this risk is generally considered low.

So can cleaning your eyes with water or over-the-counter eye drops reduce the chance of infection? He pointed out that the surface of the eye has its own protective mechanisms, including antimicrobial proteins and natural lubrication, so daily cleaning or rinsing the eye with water is unnecessary and may actually wash away some of the natural protective barrier on the surface of the eye, increasing the risk of infection. If the eyes become inflamed or red, over-the-counter artificial tears may help relieve symptoms, but if symptoms persist, you should seek medical attention from your ophthalmologist as soon as possible.

Wear contact lenses and maintain hygiene

More than a myopic person has said that they are worried that wearing and removing contact lenses regularly increases the risk of contracting the new crown pneumonia virus, Dr. Tong sent a reassurance that under proper hygiene conditions, there is no evidence that wearing contact lenses will increase the risk of infection with the new crown. "However, contact lens wearers touch their eyes more frequently than the general population, and the American Academy of Ophthalmology recommends that contact lens wearers temporarily switch to glasses to reduce the risk of contracting the virus." In addition, glasses can somewhat reduce the risk of irritation caused by wearing contact lenses and act as a barrier to stop before touching the eye. Although not the best protection, glasses can also serve as part of the protective shield for respiratory droplets."

Nevertheless, the American Academy of Ophthalmology says that as long as contact lenses are worn properly, hygiene is ensured and hands are washed frequently. If your eyes become red, stop wearing contact lenses and seek medical attention.

5 major ways to prevent new crown infection

To reduce the burial of the new coronavirus, Dr. Tong has the following suggestions:

  1. Clean your hands often
    - Wash hands with liquid and water for at least 20 seconds.
    - Try to avoid touching your eyes, nose and mouth.

  2. Reduce exposure
    - To practice social distancing, use the length of your arms (about 6 feet) as a guide distance.
    - Try to avoid entering rooms or areas with poor air circulation.
    - If you are sick, stay home unless you need medical attention.

  3. Cover coughs and sneezes
    -When coughing or sneezing, cover your mouth and nose with a tissue.
    - Immediately after coughing or sneezing, wash your hands with loaf fluid and water for at least 20 seconds.
    - Wear a mask in public to cover your mouth and nose.

  4. Clean and disinfect surfaces
    - Current evidence suggests that the novel coronavirus can survive for hours or even days on surfaces of a variety of materials. Cleaning and disinfecting visible dirty surfaces at home and in community settings is the best way to prevent coronavirus and other viral respiratory diseases.

  5. Get vaccinated
    - Vaccination has been shown to significantly reduce the risk of contracting the virus and reduce the severity of symptoms.
More information

Is pink eye also a symptom of the coronavirus? Read More »

Visual and visual migraines: What's the difference?

眼睛健康 /

Eye migraines are a rare disease characterized by a temporary loss of vision in one eye or even temporary blindness. Eye migraines are caused by reduced blood flow or vascular spasms in the retina or behind the eye.

In eye migraines, the patient's eye vision usually returns to normal within an hour. Eye migraines can be painless or can occur with migraines (or followed by).

Unfortunately, the term "eye migraine" is commonly used to describe a more common (harmless) disease - called visual migraines or preeclampsia - characterized by temporary visual impairment, which usually disappears within 30 minutes.

Unlike eye migraines, visual migraines usually affect both eyes.

Now, let's take a closer look at eye migraines and visual migraines:

Eye migraines and visual migraine symptoms :

Eye migraine symptoms usually include a small blind spot that affects the central vision of one eye. This blind spot becomes larger, preventing you from driving safely or reading with affected eyes.

In some cases, the entire field of view of one eye may be affected. Typically, the episode lasts less than an hour.

Visual migraine symptoms may vary and may include:

1. Flashing blind spot near the center of the field of view or near the center.

2. A wavy or jagged ring of colored light around the central blind spot.

3. Blind spots that migrate slowly throughout the field of view.

The symptoms of visual migraines usually affect both eyes and last for 30 minutes or less. Visual migraine symptoms may occur shortly after they disappear, or they may not have a headache.

If you experience blind spots or other visual impairments and are not sure if it's an eye migraine or a visual migraine, cover one eye at a time. If visual impairment occurs in only one eye, it is likely to be an eye migraine. If it affects both eyes, it may be a visual migraine.

But don't take any chances. If you suddenly encounter any blind spots in your field of vision, call or consult your ophthalmologist immediately to determine if it is harmless or may be a sign of more severe symptoms, such as retinal disengagement.

What causes eye and visual migraines?

Eye migraines are thought to have the same cause as migraines.

Migraines have a genetic basis, and some studies have shown that up to 70 percent of people with the disease have a family history of migraines.

According to the World Health Organization, migraines appear to be caused by the activation of the deep brain mechanism, which releases inflammatory substances around nerves and blood vessels in the head and brain.

Imaging studies have found that blood flow to the brain changes during eye migraines and migraines. But why this happens and why eye migraines and visual migraines are caused spontaneously remain unknown.

Common migraine "triggers" (including eye migraines and visual migraines) that can cause a person's migraine attack include certain foods, such as aged cheese, caffeinated beverages, red wine, smoked meat and chocolate.

FOOD ADDITIVES, SUCH AS MSG AND ARTIFICIAL SWEETENERS, CAN ALSO CAUSE MIGRAINES IN SOME PEOPLE.

Other potential migraine triggers include cigarette smoke, perfumes and other strong odors, harsh or flickering lights, lack of sleep and emotional stress.

Treatment and prevention.

As already pointed out, visual impairments caused by eye migraines and visual migraines usually disappear within an hour or less without treatment.

If you perform tasks that require clear vision, stop what you are doing and relax until your vision returns to normal when you have eye migraines or visual migraines.

If you are driving, stop at the side of the road and wait for your visual impairment to be completely removed.

If you experience visual impairments accompanied by migraines, consult your family doctor or neurologist to assess your migraine attacks.

Your doctor can advise you on the latest medications for migraines, including those designed to prevent future seizures.

It's a good idea to log your diet and activities before an eye migraine or migraine precursor attack to see if you can identify triggers that may be avoided in the future.

If your eye migraine or migraine precursor (visual migraine) appears to be stress-related, here are some simple ways to reduce the frequency of migraine attacks without medication:

. Eat healthy meals regularly.

. Avoid common migraine triggers.

. Get plenty of sleep.

. Try stress-reducing methods such as yoga and massage.

Visual and visual migraines: what's the difference? Read More »

The eyes suddenly turn red, what can we do?

眼睛健康 /

Red eyes indicate some form of eye inflammation. The condition is usually benign and self-limiting. Recognize that red flags for urgent referrals to ophthalmologists are essential to prevent long-term sequelae. A referral is required when a patient experiences severe eye pain, a large amount of pus secretion, loss of vision, distortion of the pupil, severe light loss, eye trauma and herpes infection. The cause of red eyes can be diagnosed by a detailed medical history and a careful eye examination.

Bleeding or congestion.
There was no pain.
Vision is not affected.
There are no other combined symptoms.

In some cases the treatment options for red eye disease: .

1. Viral conjunctivitis: Treatment is supportive and may include cold applying, and artificial tears. ： Local antibiotics are rarely used because secondary bacterial infections are not common. SARS-CoV-2 can be transmitted through droplets, but infected patients are less likely to spread the virus through tears, a study suggests. Researchers at Singapore's National Centre for Infectious Infectious Diseases collected tear samples from 17 patients with COVID-19 from the initial symptoms until they recovered, usually on the 20th day. None of the patients had eye symptoms, but one patient developed conjunctiva swelling during hospitalization. The virus was not detected in 64 tear samples collected during the study period, but the viral load was detected in the nasophynascopy and pharynx swabs.

2. Bacterial conjunctivitis: Antibiotics are the subject of treatment, and the choice of antibiotics should be based on cost-effectiveness and local bacterial resistance patterns. ：

3. Chlamydia ： conjunctivitis: Treatment sourciting includes local use of erythromycin eye ointment, as well as oral treatment with azithromycin (a single dose of 1 g) or strong lysycin (twice a day, 100 mg each time for 14 consecutive days) to remove genital infections, and the patient's sexual partner needs to be tracked and treated.

4. Allergic conjunctivitis: Avoiding contact with allergens and using artificial tear fluid is an effective way to relieve symptoms in mild cases. ： Over-the-counter histamines/vascular constrictions are also a viable option, and sometimes topical steroids are required to treat acute seizures.

5. 乾眼症：治療包括在白天和晚上使用藥膏頻繁滴入人工淚液，以降低蒸發速率。新的治療方法包括主題環境孢素滴眼液，它增加淚液的產生。Omega-3 脂肪酸也被證明是有幫助的。

6. Sculdonitis: Local NSAIDs have not been shown to have significant advantages over placebos in the treatment of suranoculitis, and topical steroids may be useful in severe cases, although it is usually self-limiting.

7. Hemorrhage under conjunctiva: We only need hot and eye lubricant, recurrent bleeding may require a physical examination.

Eyes suddenly turn red, what should I do? Read More »

Wuhan Pneumonia? The route of infection? Latency?

眼睛健康 /

Wuhan pneumonia: Can the eyes spread the virus?

So far, information about the new coronavirus from Wuhan is limited, including how easily it spreads and its severity. In many ways, it appears very similar to SARS (Severe Acute Respiratory Syndrome), with the new coronavirus having an 85% homology with SARS. According to the Center for Disease Control and Prevention, the primary mode of transmission is from animals to humans. However, we know that the virus can also spread from person to person, and it can be transmitted through the following three major routes:

Air (from coughing or sneezing virus particles); 

Close contact (touch or handshake); 

An object or surface with viral particles on it (and then touch the nose or eye before washing your hands);  

The public need to wear eye masks to prevent it? Wuhan Pneumonia: Incubation period What are the symptoms?

Early symptoms are similar to the flu, with an incubation period averaging 7 to 14 days. Many people misunderstand that the virus spreads in the air, but viruses exposed in the air will also die. Only the viruses that live in droplets and are protected by moisture can spread and infect. When droplets touch mucous membranes such as the eyes, the virus will follow the mucous membranes into the body, which is the same for the novel coronavirus. Research shows that after the virus is isolated, it has been proven to have an easy binding capacity to the human angiotensin-converting enzyme 2 (ACE2) receptor, which mainly exists in the lower respiratory tract cells. Therefore, medical staff performing high-risk procedures such as intubation should wear masks that cover their eyes; in this environment, only those who do not wear goggles will be infected. But for us, the general public, the common route of transmission is through droplets, and wearing a mask in public places is sufficient. Since no one will sneeze directly into your eyes, there is generally no need for the public to wear goggles to prevent Wuhan pneumonia.

Wuhan pneumonia s mask wearing the most important! "Pick the nose, rub the eyes" is more likely to become a path of infection!

The virus can spread through droplets or particles. Although masks can block most viruses and prevent the saliva from others from coming out of your mouth and nose, it is still very important to clean your hands, avoid touching your face, and ensure that masks are changed regularly. You should wash your hands after touching public facilities, before eating, after using the restroom, and when you come home from outside. Thoroughly rub both palms, backs of your hands, between your fingers, and especially fingertips, for at least twenty seconds. Moreover, the virus can survive on your phone for twenty-four hours! On January 28 this year, the National Health Commission and the National Administration of Traditional Chinese Medicine announced the 'Pneumonia Diagnosis and Treatment Program for Novel Coronavirus Infections (Trial Version 4)'. The new discovery is that the virus loses its response to ultraviolet light and heat (56°C for 30 minutes); ether, 70% ethanol, chlorinated disinfectants, peracetic acid, and chloroform and other lipid solvents can effectively eliminate the live virus. Therefore, everyone is reminded to regularly use disinfectant wet wipes containing 70% alcohol concentration to wipe the phone. In addition, glasses can be contaminated with the virus, so it is advisable to clean them with hand soap. Avoid using alcohol or other cleaners with chemical properties, as they may damage the glasses.

In summary, access to high-risk locations should be kept at a distance of 1 to 1.5 metres and stayed less than 30 minutes in case of suspicious cases. Hand sanitizer should often be used to clean hands, so as not to touch the mouth, eyes and nose, eye itching, red eyes and other conjunctivitis symptoms do not take lightly, closely observe the changes in the disease, timely medical treatment.

Five tips for preventing viral infections.
1. Regularly wipe your mobile phone with a 70 % alcohol-containing disinfectant wet wipe.
2. Wash your hands frequently with warm water and hand sanitizer, preferably for more than 20 seconds.
3. Try to avoid rubbing your eyes and keying your nose with your hands.
4. Maintain healthy living habits.
5. When the symptoms of conjunctivitis such as itchy eyes, red eyes and so on should not be taken lightly, closely observe the changes in the disease, timely medical treatment.

Dr. Tong Man Kit Ophthalmology, Hong Kong Visual EyeCentre, https://www.hkbrighteye.com/ .

【Wuhan Pneumonia】Symptoms? How is it transmitted? Incubation period Read More »

7 questions to consult your surgeon before laser surgery.

眼睛健康 /

If you have high myopia and vision that affects quality of life or ability to perform your job duties, you may have considered laser eye surgery. This advanced procedure, approved in the United States in 1999, has resulted in significant improvements in vision, work ability, and quality of life for thousands of people, and is very safe.

This article details the 7 most frequently asked questions about laser vision correction surgery to help determine if the procedure will give you the results you need.


What results can I expect?


After the evaluation, your ophthalmologist will know about your myopia. These eye conditions are caused by refractive errors, which are characterized by the shape of the eyes that do not allow light to be focused on the retina, causing the image to appear blurry.


Is laser vision correction surgery potentially risky?


Laser vision correction is a procedure with a high success rate. It is normal for transient blurring, photosensitivity, lacrimation, and mild discomfort to appear after surgery. Postoperative dry eye syndrome is common because tear production is reduced. Eye drops are recommended to help with dry eyes. Infections or complications are rare. Most patients recover quickly within 1-2 days.


Will age be a factor in the success of laser vision correction surgery?


SMILE AND LASIK ARE FDA APPROVED FOR PATIENTS OVER THE AGE OF 18. ALTHOUGH AGE ALONE DOES NOT NECESSARILY AFFECT THE SUCCESS RATE OF SURGERY, SOME DOCTORS BELIEVE THAT THE IDEAL PATIENT AGE IS BETWEEN 35 AND 45 YEARS OLD.


Will my health condition affect the surgery?


CERTAIN DISEASES, SUCH AS DIABETES, AUTOIMMUNE DISEASES, CERTAIN EYE INJURIES, AND EYE DISEASES, MAY EXCLUDE LASIK. AFTER A COMPREHENSIVE LASER VISION CORRECTION SURGERY EVALUATION, YOUR SURGEON WILL BE ABLE TO PROVIDE YOU WITH EXPERT INSIGHTS.


Is the surgery a surname, and I need to perform the enhancement surgery again in the future?


For example, hyperrefractive error or older age may increase the likelihood of having surgery again.


Should I stop taking my medication before surgery?


This is an important question to ask your doctor if you are taking any prescription or over-the-counter medications. Your doctor may recommend that you stop using certain medications, such as tretinoin and antihistamines.


How long will it take for me to resume surgery?


In general, you can see everything clearly within a few days and can perform daily tasks. After the surgeon removes the patch, your vision may be blurred, but it should disappear within a few days and your vision will gradually improve. It can take several weeks to fully recover.

7 questions to ask your surgeon before laser surgery treatment Read More »

What is excessive blinking?

眼睛健康 /
Table Of Contents
  1. Blink
  2. Causes of excessive blinking
  3. How can you help your child? 

Blink

Blinking is how we protect our eyes from fatigue.

A child blinks an average of 3 – 17 times per minute.

Anything beyond this is considered excessive blinking and may indicate eye discomfort or problems.

Blinking too much can be due to a variety of reasons – anything from facial twitching to extreme dryness of the eyes.

For new parents, it can be difficult to identify the health problems that their child may face.

Unlike symptoms such as fever and cough, it is not easily noticeable.

Causes of excessive blinking

Your child may blink excessively for the following reasons:

  1. Tic - Facial tics can lead to excessive blinking. Tic disorder is a muscular spasm that affects the muscles inside and around the eyes.
  2. Myopia - A common cause of excessive blinking is myopia. It has been observed that these children experience watery eyes, headaches, blurry vision, and excessive blinking. 
  3. Eye allergies - If your child blinks too much, has watery eyes, or has excessive discharge around the eyes, it could be an allergy.
  4. Eye fatigue - It is commonly seen in children who spend prolonged periods watching television and using computers and other electronic devices. Reading in low light, spending excessive time on screens, and inadequate sleep can lead to fatigue.
  5. Obsessive-Compulsive Disorder (OCD) is a mental disorder that can affect many children but often goes undiagnosed. This psychological condition can also lead to excessive blinking or facial tics.
  6. Blepharitis - It is a bacterial infection of the eyelid. This is one of the causes of excessive blinking in children.

How can you help your child? 

Here are a few ways to help children blink : 

There are multiple methods available to treat excessive blinking in children.

Based on the diagnosis, different treatment options may include:  

  1. Moisturizing and anti-inflammatory eye drops 
  2. Glasses 
  3. Psychotherapy 
  4. Antihistamine eye drops

When should you be concerned 
Symptoms occur when your child blinks, such as strabismus and lack of recognition for everyday life and things.

When you encounter such a situation, it is important to consult an ophthalmologist immediately.

In the vast majority of cases, this issue can be resolved with simple over-the-counter (topical) eye drops treatment. However, if the condition does not improve, oral medication can be taken as recommended by the American Academy of Pediatrics.

If you don't let your child develop the habit of excessive blinking, sooner or later they will overcome the habit.

What is excessive blinking? Read More »

Eye inaction, may be a symptom of dry eye disease.

眼睛健康 /
Table Of Contents
  1. Symptoms of dry eye
  2. Association of allergies with dry eyes

Symptoms of dry eye

It sounds contradictory that watery eyes are a symptom of dry eye, but it is.

This is because your body usually produces too many tears to help relieve these symptoms.

Causes [reflex surname tear secretion]. However, this is usually only used as a temporary remedy.

Our tears are made up of water (water-based), oil (lipids), and mucus (mucin). There are two main forms of dry eye: dehydration and evaporation.

When a person suffers from the watery form of dry eye, the tear glands in the eye do not produce enough tear-like components.

IN EVAPORATION, IT IS CAUSED BY MEIBOMIAN GLAND DYSFUNCTION (MGD), IN WHICH THE OIL LAYER OF THE TEAR FILM IS INSUFFICIENT.

MGD AFFECTS MOST PEOPLE WITH DRY EYE.

MEIBOMIAN GLAND DYSFUNCTION (MGD) IS A BLOCKAGE OF THE MEIBOMIAN GLANDS SO THEY DON'T SECRETE ENOUGH OIL IN THE TEARS.

BECAUSE THE TEAR FILM ON THE OCULAR SURFACE EVAPORATES TOO QUICKLY, MGD IS ASSOCIATED WITH DRY EYE.

It is also associated with eyelid problems in blepharitis.

Some studies have found that as much as 69% of the Asian population suffers from meibomian gland dysfunction, which cannot be ignored.

Association of allergies with dry eyes

Hong Kong weather is humid and hot, easy to appear different sensitivity, if children often eye marks, runny eyes, eye picking, etc., it may be eye sensitivity, it is recommended that parents observe the child's condition more to help the child avoid allergens, so as to avoid the child randomly twisting the eyes and causing corneal inflammation, affecting vision.

If symptoms persist, parents should take their children to the doctor, and the doctor will prescribe eye drops containing "antihistamine" or preservative-free moisturizing drops to relieve itching, while drops containing "mast cell stabilizers" can prevent eye sensitivity and recurrence.

Eye watering may be a symptom of dry eye Read More »

Enquire now