Can astigmatism be corrected Can astigmatism plus myopia be treated with femtosecond laser surgery?

Can astigmatism be corrected?

Astigmatism is a type of refractive error, which can be corrected, and there are generally three ways to correct it.

First, eyeglasses are the most commonly used method. Generally, mild or moderate astigmatism can be corrected, and the effect is very ideal.

Second, contact lenses, commonly known as contact lenses. For a high degree of astigmatism, a method can be chosen to correct it.

Third, refractive surgery, such as excimer laser surgery, femtosecond laser surgery, and so on. Surgery is generally used to correct astigmatism in adults, and surgery can only be considered if you are at least 18 years of age.

Can astigmatism plus myopia be treated with femtosecond laser surgery?

Myopic astigmatism can be corrected by femtosecond laser within a certain power range. If the eye is myopic and astigmatism, the patient can choose to have it corrected by femtosecond laser surgery or femtosecond laser surgery.

ReLEx laser surgery uses a femtosecond laser to perform two scans between the corneal layers to form a lens, which is removed through a micro-incision, so as to achieve the purpose of correcting myopia and astigmatism. Femtosecond laser surgery first uses femtosecond laser to make corneal flaps, and then uses excimer laser to cut the corneal stromal layer to change the radius of curvature of the cornea, which can achieve the purpose of correcting myopia and astigmatism.

However, this surgery requires patients, first of all, the patient must be at least 18 years old, and the diopter power is stable, and the simple astigmatism power cannot exceed 600 degrees.If astigmatism and myopia are too high, there is a risk that the cornea is not as thick as it needs to be corrected by femtosecond laser surgery. If the corneal thickness does not meet the requirements, on the one hand, it will cause postoperative undercorrection, and on the other hand, it may cause complications such as secondary conus, so not all myopic astigmatism patients can be corrected by femtosecond laser surgery.