It is really difficult to tell you the causes according to the information you give me. And what does uncorrectable vision mean? So far, i didn't meet patient who suffer uncorrectable vision unless you are suffered from blindness. If not, you can correct your vision through eyeglasses. Although eyeglasses can't cure uncorrectable vision, they can help you see better when you wear it. Besides, you can also take lasik eye surgery that probably cure your vision problems.