Laser Vision Correction (TLC Lasik)
LASIK is the most commonly performed refractive surgery procedure. LASIK stands for “laser-assisted in situ keratomileusis.” LASIK has advantages over other vision correction procedures, including a relative lack of pain afterward and the fact that good vision usually is achieved by the very next day.
The surgeon uses a laser with a cool ultraviolet light beam to precisely remove (“ablate”) very tiny bits of tissue from the cornea to reshape it. When the cornea is reshaped in the right way, it can focus light into the eye and onto the retina, providing clearer vision than before.
Pain and healing time is relatively nominal and many people are good candidates. Both nearsighted and farsighted people can benefit from the LASIK procedure. With nearsighted people, the goal is to flatten the too-steep cornea; with farsighted people, a steeper cornea is desired. Lasers also can correct astigmatism by smoothing an irregular cornea into a more normal shape.
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LASIK Procedure – The Process
- Anaesthetic eye drops are applied to the eye.
- A protective flap is created and gently lifted by the LASIK surgeon, revealing the inner corneal tissue. During this part of the LASIK process, vision can become quite blurred. Generally LASIK patients are only able to see the light of the laser and surrounding overhead lighting.
- Computer-controlled pulses of cool laser light are applied to the inner layers of your cornea. As the laser pulses, it makes a ticking sound. The inner corneal layer is reshaped with the laser to mimic your contact lens or glasses prescription. During this part of the LASIK process, an eye tracking device will track your eye movements up to 4000 times per second for precise correction.
- Following the re-shaping of the tissue, the corneal flap is carefully repositioned. The LASIK Surgeon then checks for air pockets and any other debris which may hinder the healing process. The LASIK surgeon gently replaces the flap and aligns it to its original position. It heals naturally and securely.
- Some LASIK patients may feel slight irritation for a few hours, but most are quite comfortable after a nap and rest.
Source: TLC – Lasik