corneal astigmatism

How Do You Correct The Eye Defects Of Myopia And Hypermetropia?

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How Do You Correct The Eye Defects Of Myopia And Hypermetropia? Nearsightedness, or myopia, is the inability to see distant objects and is corrected with a diverging lens to reduce power. Farsightedness, or hyperopia, is the inability to see close objects and is corrected with a converging lens to increase power. How do you correct

What Causes Refractive Error?

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What Causes Refractive Error? What causes refractive error? Refractive errors can be caused by: Eyeball length (when the eyeball grows too long or too short) Problems with the shape of the cornea (the clear outer layer of the eye) Aging of the lens (an inner part of the eye that is normally clear and helps