LASEK stands for Laser Assisted Sub-epithelial keratectomy, a laser surgery to correct short-circuited the popular eye refractive error of the cornea. It can be used to treat nearsightedness, farsightedness and astigmatism. Although many people have benefited from this laser eye surgery, there are still many people who do not have a clear idea, especially the difference in the LASEK, LASIK and PRK. Below you will find an introduction to the LASEK to give people more ideas on what type of laser eye surgery.

Let us first about the history of laser eye surgery. Corneal refractive surgery was introduced by Lans after experiments on rabbits. He described the refractive corneal surgery in various forms, such as keratectomy, keratotomy and thermokeratoplasty. Then in 1966, raised the question Pureskin disposal plant tissue under a corneal flap could change the refraction. Later did some research Barraquer show that the corneal disc can be removed, frozen and processed with complicated equipment. Although many researchers have different ways to reshape the corneal tissue have tried, when Burratto, Ruiz and Krumeich, the method developed by Pallikaris in 1989 was most similar to that used today. And then, in 1993, Slade has a precision surgical instrument that reshape the corneal flap can with an oscillating blade called a microkeratome developed. Sun Slade was regarded as one of the first surgeons to perform LASIK surgery. Although LASIK helps people a lot, there are still some disadvantages, for example, if people whose cornea is thin, do students broad, irregular astigmatism, dry eyes and glaucoma, this type of operation, it can have some complications. Then the invention of LASEK, the risk of complications and even more comfortable for people than PRK.

After a call from the LASEK eye surgery. There are five layers of translucent fabric to keep your eyes from the light. The five layers from superficial to deep: corneal epithelium, Bowman layer, stroma, Descemet’s membrane and endothelium. If there are deficiencies in the epithelium of the cornea, people can feel pain, but pain can be healed quickly in the health of the eyes. Please note the Bowman layer, because they are not replaced after an injury, and, finally, scar tissue can become standard. The thickness of the cornea and the shape is determined mainly by the stroma that 90% of the thickness of the corneal stroma contributed. As the Bowman’s layer can not be replaced Descemet’s membrane and scar tissue after injury. Endothelial cells are the deepest layer, whose function is to maintain fluid balance cornea. They have a characteristic decrease over time, and only rarely in mitosis.

LASEK retains a component of the epithelium of the cornea, this type of eye surgery reduces the risk of infections and corneal haze. Compared to other laser eye surgery, LASEK can enable people to have less time for recovery and less post-operative discomfort.


LASEK