Thursday, January 28, 2010

Why most people prefer the newer LASEK over LASIK?

LASEK laser eye surgery


More people are choosing the newer, non-cutting, no-flap, all laser LASEK laser eye surgery over LASIK due to several reasons.

1.  LASEK can treat those with thin corneas safely as it does not go deep into cornea. Since LASEK eye sugery involves no cutting and no flap is made, more tissue is available for the laser to treat. At the same time, the deeper corneal tissues are left intact, which is important in maintaining the structural strength of the eye.  Interesting to note that, a comparison study had been done between LASIK and LASEK treated eyes to assess their strength. Those LASIK treated eyes rupture more easily than LASEK. Whereas, those of LASEK treated eyes are able to withstand the similar pressure given to a normal untreated eye. So, rest assured that by doing LASEK, your eyes will still be as strong as a non-laser eye.

2.  LASEK laser eye surgery can treat those with high prescription safely. The reason for this is again because more tissue is available for treatment than LASIK does.
 

3.   No permanent dry eyes. Any laser eye procedure will cause temporary dry eyes in most of its patient (which can be treated with artificial tears and temporary punctal plugs). However, LASEK eye surgery does not cause any risk of permanent dry eyes which may be present in LASIK. The reason for this is LASEK surgery does not cut the deeper corneal tissue which contains the corneal nerves, responsible for the blinking reflex. 

4. No risk of flap complication during surgery. Common flap related complications intraoperatively during LASIK surgery include partial, irregular, buttonholed, and loss flaps. These are the most serious of all the LASIK flap complications as they can permanently cause visual problems. By logic, since they are no flap created during LASEK laser eye surgery, it’s not possible to get any intraoperative flap complications.

5.  No risk of flap complication after surgery such as debris under the flap, flap wrinkles, or epithelial ingrowth. 


6.  Better night vision after LASEK. Halos and night glare are result of the flap edge in LASIK. Therefore, since LASEK eye surgery has no flap edge, night vision will be better than LASIK.


7.  More safety after LASEK. Flap in LASIK never fully heals even after many years of the procedure and these flaps are at risk of being torn off when there’s excessive trauma. Those at risk will be people who are involved in contact sports or active lifestyles.


8.  Ease of Enhancement. Chance of a person requiring an enhancement later on is roughly same as his/her prescription prior to the procedure. E.g. you will have a 3% chance if your prescription is -3.00 D. Since there is no flap in LASEK  laser eye surgery, the doctor can easily do touch-up on the cornea without relifting the flap. Lifting up the flap is not always an easy task and may sometimes causes scarring of the cornea. Besides that, it’s still safer to do enhancement in LASEK as there’s more cornea tissue left.


LASEK laser eye surgery

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