lasik astigmatism

The laser eye surgery is best known for the treatment of myopia and hyperopia . However, these two issues are not the only vision that can be treated by laser eye surgery . The third form of the astigmatism and the refractive error can also be corrected by using the laser processing . Lasers are used to treat astigmatism have been in development for ten years. Today, there are even lasers that were later approved for the treatment of astigmatism. Exactly, LASIK surgery is usually performed to treat astigmatism . This can significantly reduce the need for patients to thick and heavy glasses or contact lenses problems that are traditionally used by patients with astigmatism .

After ten years of development, surgical treatment is astigmatism maturity to a certain extent . In particular, the LASIK to correct astigmatism was a place and the common routine. People with astigmatism degree of over 80 % can be processed during the LASIK procedure . It is expected that a greater degree of astigmatism can be corrected with the greatest technological advances in the future. In general, the treatment of astigmatism by LASIK is similar to the operations of laser eye surgery used to correct nearsightedness and farsightedness. The surgeon modify and remodel the shape of the cornea, which does most of the focusing power in the human eye .

However, for LASIK causes corneal astigmatism of the patient, more spherical , whereas the LASIK for myopia flatten the cornea. This tells us that the basic principle of treating astigmatism eye surgery . In other words , the surface of the cornea becomes spherical after surgery . In detail, a specific configuration of the laser beam is used to remove some corneal tissue from a side . This form is directed to the cornea more uniform and spherical . At the same time , this is slightly flatten the cornea , such that a degree of correction for myopia . It requires high skills in the surgeon if the patient has an irregular astigmatism. In general, LASIK surgery for the correction of astigmatism is safe and maintains high success rate.

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