Corneal surgery is now routinely performed to change the shape of the cornea and improve vision.Why is this surgery beneficial?

Question

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Corneal surgery is usually performed to correct refractive errors, such as nearsightedness, farsightedness, and astigmatism, that can cause blurry vision. By altering the shape of the cornea, the surgery can improve the focusing of light onto the retina, resulting in clearer vision.

Corneal Surgery Is Now Routinely Performed to Change the Shape