Nearsightedness, or myopia, is the most common refractive error of the eye, and it has become more prevalent in recent

Hyperopia, or farsightedness, is a common vision problem, affecting about a fourth of the population. People with hyperopia can see

On this page:  Astigmatism symptoms • Causes • Types • Prevalence • Astigmatism test • Astigmatism correction options Astigmatism is probably the most misunderstood vision problem. For starters, it’s called

Presbyopia is the normal loss of near focusing ability that occurs with age. Most people begin to notice the effects