by Ranabir Bhattacharyya | 31 MAY 2018
Lasik surgery is a popular surgery used to correct vision in people who are nearsighted, farsighted or have astigmatism and can be an alternative to glasses or contact lenses for correction of certain common vision problems. The word 'LASIK' stands for laser in-situ keratomileusis. All lasik surgeries work by reshaping the cornea. Anyhow, many people are confused whether opting lasik surgeries are risky or not for the human eye.
There are various advantages of lasik surgery. First and foremost, it corrects desired vision and is associated with very little pain. Without any bandages or stitches whatsoever, vision is nearly corrected by the day after the surgery. Importantly, adjustments can be made after lasik to further correct vision if vision deteriorates. No doubt, lasik plays a pivotal role in minimizing dependence of eyeglasses or contact lens. In most cases, people don’t need to wear them at all. Anyhow, lasik surgery isn’t for everyone. Those who have an eye disease called keratoconus, or if there is a family history of it, individuals must avoid it. If any individual has fairly good overall vision or severe nearsightedness or very large pupils or thin corneas – lasik surgery has to be avoided at any cost. Thus having age-related eye changes which can cause less-clear vision (presbyopia), this sort of surgery has to be avoided.
Anyhow, there are side effects of lasik surgery as well. Dry eyes are very common condition as lasik surgery causes a temporary decrease in tear production. For the first six months or so after the surgery, eyes may feel unusually dry as they heal. Dry eyes can reduce the quality of an individual’s vision too. Thus it is advisable to use eye drops during this time. Often it seen that individuals complain of glare, halos and double vision causing difficulty seeing at night, which generally lasts a few days to a few weeks. According to Dr. Radhi Malar, Consultant Ophthalmologist, Fortis Malar Hospital, Chennai there are other side effects of lasik surgery as well such as undercorrection, overcorrections and flap problems. In case of undercorrections, the laser removes too little tissue from eye and thus in spite of the surgery, an individual doesn’t get clear vision.
This is very common for people who are nearsighted. In all such cases, another lasik surgery is needed within a year to remove more tissue. In case of overcorrections, too much tissue is removed from an individual’s eye and can be more difficult to fix than undercorrections. Flap problems are also common when folding back or removing the flap from the front of eye during surgery can cause complications, including infection and excess tears. Overall, before deciding to proceed with lasik surgery, it is important to consider to all these aspects of lasik surgery
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