Advances in Laser eye surgery

Thanks to the fast development of modern eye technology that some people can get

rid of their eyeglasses or contact lenses for the rest of life with the help of Laser eye surgery. In recent years, Laser eye surgery has developed fast. The following will give some introduction on the advances in Laser eye surgery in order to let people know more about the surgery.

For people with good eyesight, their cornea shape is oval. But when they suffer from some eye diseases, the cornea will be out of shape. Laser eye surgery is to use a laser to reshape the cornea, which is achieved by intervening on the tissues on the underlying or stromal layer.

PRK is short for the Photo Reflective Keratectomy, in which optometrist will scrap away the cornea and then use an excimer laser to correct patients' vision. Though it has some effect in correcting people's poor vision, it usually have longer time for recovery, in addition, the epithelium layer is likely to grow back in time. However, compared with LASIK, there are lower risks inside as people don't need to have their cornea cut. And for certain eye problems which can not be treated with LASIK, PRK can help.

Then the creation of LASEK brings advances in PRK. LASEK stands for Laser Assisted Sub-Epithelial Keratomileus. Before removing the epithelium, eye doctor will use a solution with alcohol to soften the area, and then reshape the stroma by excimer laser, and finally replace the epithelium. With the help of LASEK eye surgery, people can recover sooner than with PRK.

And then LASEK continue to develop, and Epi-LASEK comes into being. When people take this surgery, optometrist will use a separator to preserve a living layer of the epithelium, and replace the layer after correcting patients' vision by excimer laser. The advantage of Epi-LASEK is it has less recovery time than LASEK.

The development of LASIK (Laser-Assisted In Situ Keratomileusis) enables people to correct their vision almost at once. It will use a microkeratome metal blade to cut the cornea flap, and then use an excimer laser to reshape the cornea and reposition the flap. It is amazing that people will enjoy a good vision after 24 hours for successful surgery.

Compared with LASIK, custom Vue LASIK is to use wavefront software to lead the laser to reshape patients' cornea shape, so it is more accurate and will ensure a higher successful rate. And now this is the most advanced Laser eye surgery, and of course, this is also the most expensive.

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Advances in Laser eye surgery

By: DerikBriany

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