Refractive Errors

Your eyes, cornea, and lens may all be shaped just well for the light rays to bend and land on your retina and make their way to the brain. If this process does not go all well, vision gets blurred, causing refractive errors, such as myopia (nearsightedness) or hyperopia (farsightedness). These conditions can be routinely treated by eyeglasses or laser surgery, called LASEK.

Hyperopia – farsightedness

Hyperopia is when someone can see distant objects clearly, but up-close objects appear out of focus. This occurs when light rays focus directly on the retina’s surface, and the light focuses behind the retina.

 

Myopia – nearsightedness

Myopia is when someone can see up-close objects clearly, but distant objects appear out of focus. This occurs when light rays focus at a point in front of the retina rather than on its surface, causing light to focus too far in front of the retina.

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Astigmatism

A common vision disorder causes the blurring of your vision when your cornea is irregularly shaped or there is an irregular curvature of your lens inside the eyes. It is a common and easily treatable imperfection in the curvature of your eyes that causes blurred distance or near vision. In it, the cornea and the lens of your eye have mismatched curves.

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