Laser Vision Correction
“Your problem. Our solutions. For a better sight.”
What is LASIK?
LASIK (Laser Assisted In Situ Keratomileusis) is an outpatient refractive surgery procedure used to treat myopia (nearsightedness), hyperopia (farsightedness), wavefront abnormalities.
A laser is used to reshape the cornea (clear, round dome at the front of the eye ) to improve the vision of the eye focuses light rays to the retina at the back of the eye.
Benefits of LASIK Eye surgery
- No longer need glasses or contact lenses.
- A proven vision correction method – Research indicates that 96 per cent of patients achieve their desired vision after LASIK treatment.
- No stitches required.
- Rapid results – Visual recovery is full in 24-48 hours.
- Painless treatment.
- Clarity of vision.
- Quick procedure.
- If necessary, further adjustments can be made years down the line to correct vision.
Various tests done before Lasik/Customized Lasik?
- Spectacle power assessment.
- Corneal topography using Orbscan IIz / Pentacam to assess the corneal thickness & curvature.
- Aberrometry using Wavescan for customized Lasik.
- Peripheral retinal examination after dilating the pupillary aperture of the eye.
The tests are mostly done on the day of the procedure. The entire preoperative assessment process may take about 1-2 hours.
Surgical procedure for Laser Vision Correction.
- The surgical procedure is relatively simple and takes only about 10-15 minutes for both eyes.
- The anaesthetic drops are first instilled to cause numbing of the eye. This may give rise to a slight burning sensation as soon as the drops are instilled.
- A speculum (Clip) is placed to separate the eyelids and to prevent the patient from closing the eyes during the procedure. The patient is asked to focus on a flashing red light
- An instrument known as the microkeratome is then used to raise a thin flap (120-140µ) of the cornea. The red light may transiently disappear during this process. Alternatively the latest technique for making the flap is using a femtosecond laser (INTRALASE) to make a highly precise and customized flap.
- The excimer laser then reshapes the cornea by removing a predetermined precise amount of tissue from the inner cornea. The flap is then repositioned back where it adheres immediately without the need for stitches or bandages.
- Visual recovery is full in 24-48 hours.