If you have high degree myopia (short-sightedness) of over 600 degrees, you may be at risk of pathologic myopia.
Patients with short sightedness of over 600 degrees are classified as having high myopia. Myopia occurs when the eyeball is too long and light rays entering the eye are unable to focus on the light-sensitive part of the eye called the retina. (Find out more about myopia)
In high myopia, excessive elongation of the eyeball results in a risk of degeneration of the retina, in particular, to a central part of the retina called the macula. The macula has the highest concentration of cones (light sensitive cells that interpret colour images) in the retina and plays a central role in processing detailed images. (Read more on how the eye works)
Highly myopic eyes are at increased risk of pathologic myopia, a sight-threatening condition characterised by degeneration (myopic macular degeneration), stretching of the retinal layers (myopic retinoschisis) and bleeding in the macula (choroidal neovascularisation).
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