Wednesday 9 March 2011

LASIK Eye Surgery and Its Risks

Laser Assisted in Situ Keratomileusis or LASIK is one of the most used and widely known eye procedure required for getting a finer eye sight. After having LASIK surgery you need not to depend on eye glasses or the contact lens for a better sight. Many people who undergo a LASIK surgical process receive the better vision due to the advancement of laser technology. But there are some reasons also why individuals do not prefer LASIK surgery, because in spite of high percentage in success rate there can be some minimal risks linked to LASIK surgical procedure.

In LASIK eye surgery the shape of corneal is changed, when someone undergoes the LASIK eye surgical process, the layer of tissues gets arching to the pupil and the iris (Eye's Colored Part), when the procedure is finished, the cornea can bend the beams of light and focus exactly to the retina instead of in front or beyond the point of retina.

When the eyes have the nearsighted fault or myopia or a farsighted vision, the LASIK is best choice. The person affected with nearsighted fault has an eyeball that may be somewhat longer than the normal or might be curving in sharply; it would cause the shift of light from the retina and results in fuzzy sight. A farsighted person has the opposite signs and their eyeball might be the shorter than the normal eyeballs, or the cornea might be very flat and focusing the light behind retina instead of on the retina, so it causes a near vision and hazy on distance.

LASIK is one of the best available options for the improvement of Eye Vision, but there are some risks also, here is the list of some LASIK surgery risks.

1. Flap Related Risk - during the surgery a flap is created in the cornea by the surgeon using a hand held device or a special laser, a normal flap should have a suitable thickness and even edges but sometime the surgeon may create a flap that is too thick or does not have even edges. This flap may cause healing after the surgery and less post surgery vision; a second eye surgery might be needed to correct the flap. But now a day this complication has been reduced to almost zero by the use of advanced laser technology.
2. Nighttime Vision - After LASIK surgery some LASIK patients may not be able to see as much clear in night time as they can see during the day. If this problem occurs then another eye surgery is required.
3. Infection - This is the most common type of risk that can occur during any surgical procedure. Infection after LASIK surgery is very rare but if it occurs then the patients may notice the redness and oozing of eyes, good news is that these types of infections can be treated easily by using some special eye drops and antibiotics.
4. Dry Eye - In this condition eyes feel dry, scratchy and sometimes painful, even this situation is also not harmful but when the patient feels uncomfortable, this can also be treated by using suitable eye drops.
5. Under correction/Over correction - During LASIK, surgeons uses some advanced medical technologies to accurately determine the amount of the laser energy to be focused on the cornea to remove the exact amount of tissues from the cornea, but sometimes the adjustment of cornea is not perfect which results in removal of too much or too little corneal tissues. This is referred to as under correction or over correction. Some surgeons offer a free follow-up LASIK surgery to overcome the problem of over correction or under correction.

Although there are risks linked with of LASIK but now a day due to advancement in medical technology the occurrence of these is reduced to almost zero.

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