Refractive errors such as Astigmatism, Farsightedness (hyperopia), Nearsightedness (myopia) and Presbyopia are treated with the help of refractive surgery. It is a method to correct or improve the vision. Refractive surgery reshapes cornea and clear it. It may also implant a lens in the effected eye. LASIK (Laser Assisted in Situ Keratomileusis) is widely used procedure for refractive surgery. Another way to perform refractive surgery is through surface laser.
Surface laser is also known as ASL, PRK, Nu-LASIK, LASEK, and Epi- LASIK. If the patient’s cornea is irregular, unstable or thin, LASIK is not suitable. The patient is most likely to be treated with surface laser.
Surface laser procedure skips many steps used in ordinary refractive surgeries. It uses femtosecond laser which actually throws lasers on the cornea. Basic difference in the surface laser procedure and LASIK is the recovery time. Recovery time is longer for surface laser procedure than for LASIK. A patient who has surface layer surgery for his eye may take 4 days and in some cases more than 4 days to achieve his usual vision. Even after the surgery eyes feel gritty and sore for some days. [Read more…]