Myopia is a defect f the eye where the image of an object falls before the retina of the eye. Images should fall on the retina of the eye. Distant objects cannot be seen clearly by a person affected by myopia but he or she can see close objects clearly. Myopia is more commonly known as short sightedness. It is caused by the inaction of the muscles controlling the contraction or expansion of the lens in the eyes. There are two main reasons for the cause of myopia - Increase in the Anterio-Posterior length of the eyeball or the increase in the curvature of the cornea (lens) or an increase in the refractive index of the lens (early cataract).
There are three classifications of myopia - Congenital, simple or development.
There are many techniques available now for the treatment of myopia. They are Radial Keratectomy, Photorefractive Keratectomy and Lasik Procedure and application of corrective lenses.
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