High myopia threatens vision, cataract symptoms can not be ignored.

High myopia threatens vision, cataract symptoms can not be ignored.

High myopia is a relatively severe level of myopia. Myopia of 600 degrees or more is medically defined as high myopia. Its formation is related to changes in eye length. The normal length range of an eyeball in adults is 22-27mm. If the length is greater than 27mm, it will cause high myopia. In almost all cases, genetics is linked to the development of high myopia. If both parents are short-sighted, their children also have a greater chance of developing high myopia.  High myopia by itself usually does not lead to vision loss. However, people with this condition are more likely to develop several other vision-threatening conditions, including:  

  • Retinal detachment 
  • Glaucoma 
  • Cataract 
  • Retinal perforation or even detachment
  • Macular lesions and bleeding

Even if laser vision correction surgery reduces the degree of high myopia, complications cannot be avoided

In recent years, some patients with high myopia have undergone laser vision correction surgery, and the degree of myopia has decreased, so they have forgotten to continue to pay attention to the problems that may be caused by the original high myopia. But in fact, laser correction only changes the curvature of the cornea, not the length of the eyeball. Therefore, all complications arising from long eyeballs will not be reduced by laser correction!

High myopia causes cataracts to deepen rapidly

In a recent study of cataract and cataract surgery outcomes for high myopia, researchers found that cataracts in highly myopic eyes occur more quickly than in normal eyes. In addition, highly myopic eyes have a higher prevalence of comorbid diseases and complications such as retinal detachment.

Therefore, people with high myopia must have a routine eye exam so that their ophthalmologist can monitor the health of their eyes and look for these symptoms as well as signs of other complications of severe myopia.

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