Has this happened to anyone before?(vision)?!
Question: I can see clearly when I am walking/driving/etc., But when I read, after 30 minutes, the letters are not i focus and they cross, its like double vision. If it has happened to you before, does it get worse? whts it called?
Answers: I can see clearly when I am walking/driving/etc., But when I read, after 30 minutes, the letters are not i focus and they cross, its like double vision. If it has happened to you before, does it get worse? whts it called?
The optometric physician (?) has it pegged. You are hyperopic, farsighted. Since your eyes are 'weak' relative to normal, the light is focused behind your eye instead of on the retina like 'normal'. Since that's blurry, you increase the power of your lens by using the ciliary muscle like people do to read or look at something close up. The amount of power you use to see at distance, plus the normal increase in power to read on top of that makes you tired after 20-30 minutes or so. You'll find your mind wanders, it's hard to maintain concentration, you get sleepy and want to just lay your head down on the table for a few minutes.
My guess is that you are probably about +2.50 to +3.00 hyperope. If you see an optometrist or an optometric physician, s/he'll refract you, get you to relax by over plussing you till you DO relax this accomodation or give you cyclogel to paralyze the muscles of accomodation. Then you'll get a prescription for glasses.
Even someone with as little as +0.50 of farsightedness will tire easily like you describe and they can't believe how nice it is to HAVE those new glasses, whether they look weird or not. Seeing is a LOT cooler than not.
Would also guess you are in your mid to late teens, possibly early twenties where people have to start reading or studying more than before, so these symptoms become bothersome.
If you put in the power to read to see at distance, then add power to read to read, that's a lot of power. Your brain thinks that when you are trying to see at distance, that in reality you're reading, so the accomodative reflex comes in and 3 things happen. Your eyes move together or cross to look at that thing a foot away, the pupil gets smaller, and the lens bends enough to see clearly at 'that' distance. But for you, eyes are crossing at distance, especially when you are tired. Actually it sort of just wanders off and you see weird double vision for a second or so.
If your sugar went up, you'd get nearsighted. All the other explanations are possible, but I'd put $ on simple hyperopia or farsightedness.
your stressing your eyes out thats why. But it shouldn't be like that all the time...Id ask your optometrist because it could be a million reasons why.
it happens to me, i call it lazy eye... but i have a very mild case of it(when i read at night and when i am tired my eye is especially lazy). Also sometimes when i am not concentrating at looking at something it really becomes blurry(my lazy eye basically goes cross-eye)... hope you don't have it. I deal with it by shutting my eyes for a few seconds and then open them to see if they reset(readjust) to what i am looking at(also looking away from what your looking at is highly recommended because it causes me headaches if i look at a blurry vision for too long... I would not be surprised if you have the same problem as me....
also side note(i take off my glasses when i read because i have prescription glasses to see far i find it makes everything close look smaller so it has more of tendency to become blurry with my glasses on), also i find stuff that i read close without glasses to be slightly sharper/darker.
I do not have enough information from your description to really make a judgment. For instance, are you farsighted? If so, you may be having trouble with focusing with reading? Are you near or over 40? If so, you may be suffering from an age related loss in focusing called presbyopia. Do you have a convergence insufficiency? If so, you may be seeing double with reading because you are having trouble turning the eyes inward when you read. Etc. Etc. To know for sure you need to go in and have a thorough vision examination.
I developed presbyopia before the age of 40. Presbyopia generally happens during the aging process. I developed presbyopia at 32. It sounds like you may have presbyopia but it could also be a physical problem. You should see an eye doctor.If the eye doctor finds nothing then you should go get tested for hypoglycemia.