Is there any operation by which eye sight can become normal?upto what power contact lens are available?

"is it important that it looks from both eyes when we close one eye?" uh, what? "is it true that power of the eyes does not increase after 20's?" most nearsighted people do not continue to get more nearsighted after about 23. but SOME still do... "what are the prices of contact lens ?" varies GREATLY by modality, brand, Rx "after what age should i start wearing contact lens if my power is -3.00?" whenever you see blurry far away? I mean the instant your Rx is not zero anymore, in theory you'd need to do something... "what is name of this disease?" its not a "disease"...it's refractive error. and if you're -3.00 that's "myopia". disposable soft contacts come +20.00 to -20.00 LASIK can easily be performed on a -3.00 patient with very high success rate, so yes there is an operation by which your eyesight can become "normal".

Your eyesight can change yearly up till you die. There is no age. A negative number like you listed is NEARSIGHTED. The highest you can get for contacts is -12

Your eyesight can change yearly up till you die. There is no age. A negative number like you listed is NEARSIGHTED. The highest you can get for contacts is -12