How many degrees of myopia can lead to blindness?
Disease description:
I have -1200 diopters of myopia, and recently things have started looking distorted. There are also dark shadows floating in front of my eyes. Is it true that high myopia can really lead to blindness? How can I prevent it?
Doctor's answer (1)
Dr. Wang Shuai
Blindness refers to the loss of vision. Generally, there is no specific numerical boundary indicating how many degrees of myopia would lead to blindness, but high myopia may increase the risk of blindness.
Simple myopia itself does not directly lead to blindness; instead, blindness is usually caused by complications associated with myopia. For example, in patients with high myopia, the eye axis becomes elongated, stretching and thinning the retina, which makes it more prone to retinal holes and subsequent retinal detachment. Additionally, high myopia can cause lesions in the macular area, such as macular hemorrhage and macular splitting. If left untreated, these conditions may lead to severe vision loss or even blindness.
Furthermore, the eyeballs of individuals with high myopia may be longer than those of normal-sighted individuals, placing increased tension on the retina and raising the risk of complications. Therefore, individuals with high myopia should undergo regular eye examinations to detect and address any potential issues at an early stage.
In daily life, it is recommended that individuals with high myopia maintain good eye habits and avoid prolonged near-eye work to preserve eye health and prevent the onset of eye diseases.
