Astigmatism and Contact Lens

Astigmatism is an eye ailment whose effect is blurred vision. It is a result of asymmetry between the shape of the cornea and the lens of the eye. 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.

Using myopia and hyperopia, there are five types of astigmatism. Simple myopic astigmatism is a condition wherein one meridian is nearsighted and the other is functioning free of any impairments. Compound myopic astigmatism is where both meridians are myopic yet one meridian has much graver symptoms of nearsightedness. Simple hyperopic astigmatism is where one meridian is hyperopic while the other is cleared of farsightedness and nearsightedness. Compound hyperopic astigmatism is a condition where both meridians are farsighted, yet one has a worse case than the other. The last condition is mixed astigmatism, where one meridian is nearsighted while the other is farsighted. Astigmatism can be easily treated with contact lenses. Astigmatism contact lens is called “toric” contacts.. They have the same material of that regular contacts hence they can be either soft lens or RGPs. Toric lenses have two purpose, one is treatment for astigmatism while the other is to fix nearsightedness or farsightedness. It also takes into consideration the blinks and eye movements of the user.

It is important to have a eye examination with an eye practitioner to check if you are fit to wear toric lenses. Doctors may choose to fit the patient with a higher-powered spherical soft lens to mask the astigmatic concerns. The result of this technique is unique from one patient to the next so that is why the fitting process may take some trial and error by both patient and doctor.

Astigmatism contact lens is available in the market, and manufactured by leading companies. Better have your eye check with a doctor so he or she can recommend a good brand for you. Toric contact lenses are available in different forms, like frequent replacements, and disposables, extended and daily wear.