Wednesday, 23 September 2015

Refractive Errors Of Eyes

When the light rays are not properly focused into retina of the eye , a refractive error results and vision is not clear. These imperfections in the focusing power of the eye are called refractive errors.

The common refractive errors are:

It is the most common refractive error in which close objects are seen clearly, but the distant objects appear blurred. Myopia occur when the eye ball is more longer or when cornea/ lens being too curved. Head ache and eye strain are the other symptoms of myopia.

Myopia vision

Nearsightedness can be corrected with contact lenses, eye glasses , laser and other refractive surgery.

Hyperopia is common in most of the people. In farsightedness the distant objects are seen clearly but near or close objects are appear blurred. When the lens of the eyes are not curved enough which prevents incoming light from focusing directly on the retina, results hyperopia or farsightedness.


Astigmatism is a common eye condition that corrected by eyeglasses, contact lenses, or laser or other surgery. Head ache, eye irritation, eye strain are some symptoms of astigmatism. It is caused when the eye is not completely round. 


Symptoms are :
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