Imperfections in the focusing power of the eye are called refractive errors. There are three primary types of refractive errors: myopia, hyperopia and astigmatism. Combinations of myopia and astigmatism or hyperopia and astigmatism are common. With age, presbyopia and cataracts can also impair vision.
Myopia
Persons with myopia, or near-sightedness, have clear close up vision but have more difficulty seeing distant objects. Learn More »
Hyperopia
In Hyperopia, or farsightedness, near vision blurs first and then distance at a later stage. Learn More »
Astigmatism
Astigmatism is a distortion of the image on the retina caused by irregularities in the cornea or lens of the eye. Learn More »
Presbyopia
Presbyopia is a condition that everyone develops at some point. People over the age of forty suffer from increased difficulty in reading.
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Cataracts
Cataracts form cloudy areas on the eye lens and reduce vision.
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