Hrm, I have eyesight issues. They are worse when I use a computer for a length of time. Retina display improves it. I have 2 astigmatisms. My left eye is worse

Hrm, I have eyesight issues. They are worse when I use a computer for a length of time. Retina display improves it. I have 2 astigmatisms. My left eye is worse than my right. I'm not sure if computers can change the shape of the eyeball but that is what the problem is. When light enters my eye, because of irregular shaped eyeballs, the light that reflects onto the retina is out of sync. It's easier to see things closer to me because details are more prominent, so the misalignment doesn't have much of an effect. It's not a problem of lens focus. The reason computers make it worse and retina display helps is because the lack of definition adds to the lack of definition caused by the misalignment, causing terrible headaches and a sore dull ache (the latter does not improve with glasses). On top of that, the usual dry eyes are a problem. There's a spray that's come out in the UK which is handy since it mitigates the aim issue somewhat, though I have sprayed my forehead whyen being careless.