What is the highest prescription for glasses?

[Rosita]

I have strong degrees in both of my eyes. I have to wear thick lens glasses. I am wondering what the highest prescription for glasses are. Can you tell me?

[Minatare]

Dear, I don't know what the highest prescription for glasses is. But I can give you some suggestions to improve your eyesight or correct your vision problem. I have a friend who had lasik eye surgery last year. Now she has good eyesight except that she will feel dryness sometimes. You can take off your glasses and look at the distance for few minutes every hour.

[Rosier]

I heard that some prescriptions are higher than -30, though they are very rare. But I can't tell you whether it is true or not for I don't suffer this. You can have your eyesight checked by an eye doctor regularly to prevent the big changes and take the doctors advices to improve your eyesight. There are some exercise and eye relaxation that are recommended to improve our vision, you can search on the internet and have a try.