I have a few questions regarding myopia.
1) Do screens actually cause myopia, if so how, is it how closely it sits from our eyes, if it’s in the darkness or is it the screen itself
2) Can myopia get worse, or does it stop and stabilise at a certain age?
3) Are there ways to reverse/treat myopia?
In: Biology
There’s one big piece that we understand – your eyeball changes shape to adjust focus. When you look at things that are very close up, your eyes can actually adapt to that constant need to focus up close and the eyeball elongates. Eventually it basically focuses in the wrong spot (compared to your retina in the back of your eye) and lenses are needed to get the focus in the right spot for things farther away. It can progress to become pretty severe. There’s some evidence that you can reverse the process as well.
A similar example would be when someone wears high heels all the time. Their calf muscles can actually shorten. It takes time and specific work to get them back to their natural functioning state.
Why some people’s eyes respond like this and other people’s don’t is the part we don’t understand. There’s probably a mix of environmental and genetic components.
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