An eye ailment resulting in blurred vision is called astigmatism. The shape of the cornea and the lens of the eye is not in symmetry. The cornea is in an oblong shape resulting in loss of vision. Astigmatism is the difference in curvature in the different medians in the parts of the eye.
There are five types of astigmatism based on nearsightedness and farsightedness. The first is simple myopic astigmatism where one meridian is myopic while the other is free of hyperopia and myopia. The second is compound myopic astigmatism, where one meridian is nearsighted and the other shares the same symptom but on a much broader scale.
Simple hyperopic astigmatism is where one meridian is hyperopic while the other is cleared of farsightedness and nearsightedness. The other called hyperopic astigmatism means that both meridians are farsighted with one having a graver condition. Mixed astigmatism deals with both meridians having opposite effects, one is myopic, the other hyperopic. Treatment of astigmatism through contact lenses is now available these days.
Toric contacts are the contacts that is used for treating astigmatism. They are made from same material as regular contact lenses; so they can be either soft or regular gas permeable. The two-tiered treatments of toric lenses are to deal with astigmatism and either myopia or hyperopia. It also includes a mechanism that keeps the lenses’ stability when the user blinks or looks around.
Before purchasing astigmatism contact lens, better consult your eye doctor for fitting and prescription. The doctor for the patient’s astigmatic concerns may employ a high-powered spherical soft lens. This fitting process deals with trial and error for both patient and doctor.
There are a significant number of companies producing astigmatism contact lens. Better have your eye check with a doctor so he or she can recommend a good brand for you. Toric contact lenses are available as frequent replacements, disposable and even daily disposables.