Our eyes are very delicate and need care from damage from the sun and hard objects and chemicals. Few people have perfect eyesight. Some people are short sighted or long sighted (can only see close and far objects respectively) in which case they need eye glasses to help them to see normally. These have to be prescribed by an eye doctor after a diagnosis to know how much correction the person needs as not everyone needs the same strength of lenses. In place of eyeglasses some people are opting for laser eye surgery. But laser surgery is relatively new but can give very good results especially for patients with very high prescriptions.
Emikokolala posted a photo:
I was just playing around in the GIMP, trying to express a feeling. ^^