Presbyopia
Presbyopia is part of the natural aging process of the eyes, and when people reach around the age of 40, the symptoms of presbyopia begin to appear. Although presbyopia is not a serious eye disease, presbyopia surgery may also be considered to correct vision when daily life is affected. However, the imperfections of traditional presbyopia correction make patients need to undergo surgery again. At present, the newly introduced Presbymax presbyopia laser vision correction surgery can improve many problems and is a great boon for presbyopia.
What is presbyopia?
The main cause of presbyopia is the deterioration and hardening of the lens in the eyeball, which causes the lens to lose its elasticity and weaken its refractive power, and the lens gradually loses its original flexibility and function, making it difficult for the eye to see objects at close range, especially in darker environments.
In the past, presbyopia was usually bothered by people over the age of 40. However, in recent years, with the advancement of technology, everyone owns smartphones, computers, and tablet electronics, making daily life closely connected to these digital products. Many people stare down at the screen for a long time, which causes the ciliary muscle to tighten for a long time, causing the eyes to enter the aging stage early. In Hong Kong, presbyopia has increased by 20 to 30% among people under the age of 40, and many people even begin to experience symptoms of presbyopia between the ages of 35 and 40.
How to tell if you are presbyopia, or shortsighted, or farsighted?
Presbyopia
People tend to confuse presbyopia and farsightedness because both involve the problem of not being able to see objects at close range. However, the causes and treatments of the two are very different. Presbyopia is an age-related vision problem. The main causes of presbyopia are the weakening of the ciliary muscle and the hardening and loss of elasticity of the lens, making it difficult to see things up close.
Myopia
Myopia is the ability to see clearly when looking at objects at close range, but blurry vision at distant objects. This is because the length of the eye axis is too long or the curvature of the cornea is too steep, causing the focus to fall in front of the retina.
farsightedness
Farsightedness refers to the relative ease of seeing distant objects, but may feel blurry when looking at objects up close. This is because the length of the eye axis is too short or the curvature of the cornea is too flat, so that the focus falls behind the retina.
How to deal with/deal with presbyopia in the market at present?
Wear reading glasses
Wearing reading glasses is one of the most common ways to improve presbyopia. However, reading glasses need to be carried with you, as they must only be worn when you need to see objects up close. This may make carrying glasses a habit and may not be convenient for some people.
In addition, reading glasses can only provide clear vision at a certain distance, and for people with both myopia and presbyopia, it may be necessary to constantly change glasses of different prescriptions in different situations, which can be distressing for some people, as well as affect their self-confidence and participation in social activities.
Dual-purpose contact lenses
Dual-purpose contact lenses come in two different prescriptions, allowing users to see near and far at the same time. Although dual-purpose contact lenses do not require frequent swapping of two pairs of glasses like reading glasses, it can be relatively difficult for some people to wear contact lenses, and it takes some time to get used to them, and not everyone is suitable for dual-purpose contact lenses, especially the elderly.
In addition, the use of dual-purpose contact lenses requires regular cleaning and maintenance, and there are some precautions to be taken when using them to avoid eye injuries or bacterial infections. These are all factors that patients need to consider before choosing dual-purpose contact lenses to ensure the safety of their eyes.
Presbyopia surgery
With the continuous advancement of medicine, the method of correcting presbyopia is no longer limited to the use of traditional tools, and patients can now choose to undergo presbyopia surgery to solve the problem of presbyopia at the root and get rid of the dependence on traditional reading glasses or contact lenses. Today's most advanced presbyopia surgery includes LBV, SMILE and Presbymax, the latest technology from Germany. These presbyopia surgeries provide patients with a wider range of options to choose the most suitable presbyopia correction method according to their needs and budget.
Current orthopedic surgery for presbyopia
In the face of presbyopia, patients do not need to worry too much, because the methods of presbyopia correction are increasingly diverse. For example, LBV presbyopia correction, SMILE presbyopia correction and Presbymax presbyopia correction technologies have brought a lot of convenience to patients.
LBV PRESBYOPIA
Laser Blended Vision (LBV) is a modern presbyopia correction technology that retains a certain parallax between the two eyes, and at the same time extends the depth of field through corneal sculpting aberration, so as to achieve clear vision in the distance, middle and near focus.
The core principle of this technology is to increase Spherical Aberration through laser technology to expand the depth of Focus, and at the same time improve far, medium and near vision and stereoscopic acuity, making it easier for people to cope with the visual needs at different distances.
The doctor will use laser technology to micro-cut and shape the patient's cornea, and correct myopia, farsightedness, and astigmatism to near zero degrees in the main eye to see long-distance images. The other eye reserves or creates about 150 degrees of myopia for viewing close-up images and counteracting presbyopia, and a slight spherical aberration image will be added to increase the depth of field of both eyes, prolong the focus, and create a "blend zone" for patients at the same time, so as to provide good near, medium and distance vision.
LBV PRESBYOPIA CORRECTION IS SUITABLE FOR PRESBYOPIA PATIENTS AGED 40 TO 65 YEARS WITHOUT CATARACTS, AND CAN SIMULTANEOUSLY CORRECT UP TO 300 DEGREES OF PRESBYOPIA, 200 DEGREES OF ASTIGMATISM, AND 800 DEGREES OF MYOPIA OR 200 DEGREES OF FARSIGHTEDNESS.
DISADVANTAGES OF LBV PRESBYOPIA
- PEOPLE WITH KERATOCONUS, MATURE CATARACTS, GLAUCOMA, OR A HISTORY OF CORNEAL INFECTION OR IMMUNE SYSTEM PROBLEMS MAY NOT BE ABLE TO UNDERGO LBV PRESBYOPIA.
- ESPECIALLY FOR PATIENTS WITH MATURE CATARACTS, LBV PRESBYOPIA CORRECTION MAY NOT ACHIEVE THE DESIRED RESULTS, AND FURTHER DETERIORATION OF CATARACTS MAY LEAD TO CONTINUED VISION LOSS.
- PEOPLE WHO HAVE UNDERGONE LASER VISION CORRECTION ALSO NEED TO UNDERGO A DETAILED EXAMINATION OF THE CORNEAL STRUCTURE AND THICKNESS TO DETERMINE WHETHER LBV PRESBYOPIA CORRECTION IS SUITABLE.
SMILE PRESBYOPIA
Small Incision Lenticule Extraction, a new technology that can help patients with myopia, astigmatism and presbyopia, has more than 5 million cases of SMILE presbyopia worldwide, and Hong Kong has gradually popularized this technology to correct presbyopia for patients.
SMILE presbyopia correction technology uses the Carl Zeiss VisuMax femtosecond laser system to change the curvature of the cornea by creating a thin slice (lenticule) inside the cornea and making a tiny incision of about 2 to 4 mm without opening the corneal flap, and then separating the cut corneal tissue from the small incision, thereby changing the corneal curvature to achieve the effect of correcting vision. The principle of SMILE presbyopia correction is mainly to make the main eye through the laser into flat light without degree (used to see medium and long distance), rather than the main eye leaving about 50-200 degrees of myopia (used to see close range) to offset presbyopia.
THE DISADVANTAGES OF SMILE PRESBYOPIA
- PEOPLE WITH FARSIGHTEDNESS, NEARSIGHTEDNESS ABOVE 1000 DEGREES, OR ASTIGMATISM ABOVE 500 DEGREES MAY NOT BE SUITABLE FOR SMILE PRESBYOPIA.
- SMILE's Monovision principle may blur the mid-range visual field and lead to poor stereoscopic perception.
THEREFORE, WHEN CONSIDERING LBV/SMILE PRESBYOPIA, PATIENTS SHOULD DECIDE WHETHER THESE TWO PRESBYOPIA SURGERY ARE SUITABLE ACCORDING TO THEIR OWN VISION NEEDS AND CONDITIONS.
In addition to LBV and SMILE, is there a better choice?
Presbymax presbyopia
Presbymax presbyopia correction is the latest treatment technology on the German AMRIS excimer laser platform, using excimer laser on the surface of the cornea for fine cutting plasticity, the postoperative cornea is in a multifocal state, the central area of the cornea is used for near viewing, and the peripheral area is used for farsighting, so that patients can obtain clear vision in the far, medium and near areas at the same time after surgery. The price of Presbymax presbyopia correction technology is more affordable than expensive multifocal intraocular lens surgery, which is a new gospel for the majority of presbyopia patients.
The entire treatment process of Presbymax Presbyopia Correction takes only a few minutes, allowing the cornea to appear multifocal after surgery. This multifocal state makes the central region of the cornea suitable for close vision and the peripheral area suitable for distance vision, resulting in clear vision at all distances of far, middle, and near:
Look closer to the area
Presbymax presbyopia can effectively maintain a clear vision at close range, overcome the trouble caused by presbyopia on reading, achieve close reading vision, and allow patients to easily enjoy reading books, documents and other activities.
Mid-distance area
Presbymax Presbyopia also provides excellent vision at moderate distances, such as when using a computer screen, tablet or attending a meeting. This technology is able to effectively cope with daily work and recreational activities, ensuring that patients can clearly see what they need at mid-distance distances.
Look far ahead
For distance vision, Presbymax presbyopia correction also provides excellent correction results. This means that patients can easily identify road signs, signs or scenery in the distance without the limitations of presbyopia.
Advantages of Presbymax presbyopia
Presbymax presbyx technology uses the magical power of laser to bring a new visual experience to the eyes and show superior results in many aspects. Presbymax's sophisticated presbyopia correction technology, which skillfully treats the surface of the cornea, creates a convex lens effect by applying lasers in different areas, which allows light to enter the eye at a more suitable angle. Especially in the middle area of the eye, a special structure in the shape of a teardrop is formed, which is able to focus on objects at close distance, independent of the size of the pupil, which is especially suitable for Asians. What is more noteworthy is that after Presbymax presbyopia correction surgery, it can achieve far, medium and near all-round stereo vision, so that patients can enjoy clear vision at different distances.
Why choose Presbymax Presbymax?
In fact, Presbymax has been widely recognized worldwide and has steadily developed into a mature presbyopia solution. Presbymax Presbyopia Correction not only provides multi-distance vision correction, but also has a high degree of postoperative stability and patient satisfaction.
Presbymax Presbyopia surgery can be completed in as little as 10 minutes and is uncomfortable, allowing most people to return to normal activities in as little as 24 hours. Even within a few weeks, patients can feel the return of perfect vision, which is very important for eye health and quality of life.
Presbymax presbyopia correction not only greatly improves the state of the eyes at the technical level, but also provides more flexible and diversified presbyopia correction options for presbyopia patients. The excellent performance and efficacy of this technology have undoubtedly become a bright spot in the field of presbyopia correction. If you are looking for a convenient, fast and efficient way to correct presbyopia, Presbymax is undoubtedly the ideal choice for you.