LASIK, laser-assisted in-situ keratomileusis, eye surgery is eye procedure that corrects given vision problems so there is no need to use eyeglasses or corrective lenses. The surgery is the most common of refractive eye surgery and changes shape of the cornea located in front of the eye. This kind of laser eye surgery bends or refracts light rays to focus on the retina rather than any other point beyond or short of the retina. The main goal is to fetch you sharper and clearer vision.
When it can be done
LASIK eye surgery can be done with vision problems like nearsightedness or myopia, farsightedness or hyperopia and astigmatism. Myopia occurs when the eyeball is longer that is normal or when the cornea is sharply curved hence light rays are focused in front of retina blurring distant vision. When you have myopia you will see close things clearer, but not those at a distance. Hyperopia on the hand occurs when the eyeball is shorter than average or the cornea is too flat, hence light focuses behind the retina and not on it. In astigmatism uneven flatness or curving of the cornea disrupts near and also distant vision.
Just like any other surgical procedure, the laser eye surgery does come with a number of risks and you are better off informed before the surgery so you know what to expect. Some of the risks involved include:
· Under-corrections when the laser removes very little tissue from eye, hence the vision is not as clear as expected.
· Overcorrections when too much tissue is removed from the eye.
· Vision going back to pre-surgery as a result of hormonal imbalances, abnormal wound healing and pregnancy.
· Visual changes or loss, even though rarely.
· Astigmatism caused by uneven removal or tissues.
· Double vision, halos and glare.
· Dry eyes for first few months because of decreased tear production.
· Flab problems that include excess tears, inflammation and infections.
One of the best ways of reducing the risks that are associated with LASIK is to find a doctor that you can trust in qualification, skills and experience. It is also important to remember that there are health conditions that increase the risks. Find out the state of your health beforehand and be absolutely sure that you need a laser eye surgery.
Preparing for the surgery
Your doctor should be in a position to guide you through the preparation stage of the eye surgery, but some of the things you will be required to do are highlighted below.
Stop wearing contact lenses weeks before surgery because they can distort cornea shape leading to inaccurate measurements or poor surgical outcome.
Skip eye makeup day before the surgery. You may actually be needed to clean the eyelashes daily several days leading to the surgery so that infection risks are minimized by debris removal.
Know the surgery costs. This is very important considering that most insurance companies do not cover the surgery because it is considered elective surgery. Make sure you can afford the doctor you are trusting with the procedure.