What is Refractive Error ?
In eyes with normal vision, the cornea bends (refracts) light precisely onto the retina at the back of the eye. But with near-sightedness (myopia), farsightedness (hyperopia) or astigmatism, the light is bent incorrectly, resulting in blurred vision. This can be corrected with glasses or contact lenses of appropriate power, which need constant maintenance and care.
Laser-assisted in situ keratomileusis (LASIK) is safe and most commonly performed laser vision correcting surgery for refractive errors. LASIK is a perfect solution to get freedom from glasses and enjoy the beautiful world around you clearly
How does LASIK correct vision?
During LASIK surgery, a special type of laser is used to precisely change the shape of the dome-shaped clear tissue at the front of your eye (cornea) to improve vision and help you see clearly.
Who is a good candidate for LASIK surgery?
To have LASIK surgery, you need to meet certain requirements. Here are some of them:
⦁ 18 years or older, (when vision is more likely to have stopped changing).
⦁ Stable eye prescription, should not have changed much in the last year.
⦁ Refractive error must be one that can be treated with LASIK.
⦁ Normal corneal thickness, and your overall eye health must be generally good.
⦁ Have realistic expectations about what LASIK can and cannot do for you.
What happens during Lasik Evaluation?
Our ophthalmologist will thoroughly examine your eyes and make sure you are a good candidate for LASIK.
⦁ Detailed and dilated refraction
⦁ Comprehensive eye examination
⦁ Retina examination
⦁ Scans to map the corneal surface
⦁ IOP check up
What to expect During LASIK
Our eye surgeon uses a laser to reshape your cornea.
⦁ Your eye will be numbed with eye drops.
⦁ Our eye surgeon will place an eyelid holder on your eye to keep you from blinking. He or she will also place a suction ring on your eye to keep it from moving. You will feel pressure like a finger pressing firmly on your eyelid. At this point, your vision will go dim or black.
⦁ Using either a device called a microkeratome or a laser, our ophthalmologist makes a paper-thin flap in the cornea tissue.
⦁ You will be asked to stare at a target light so that your eyes will not move. Then the treatment laser is applied and cornea is reshaped.
⦁ During the laser, you will hear a clicking sound. After reshaping the cornea, eye surgeon folds the flap back down into position and soothes the edges. The flap attaches on its own in 2–3 minutes, where it will heal in place.
⦁ The ophthalmologist may place a see-through shield over your eye or ask you to wear a shield for a few days. This is to protect your eye while it heals.
⦁ You should plan to go home and take a nap or just relax after the surgery.
⦁ For a few hours, your eyes may feel scratchy or feel like they are burning. You will be given special eye drops to reduce dryness and help your eye heal.
Vision after LASIK
About 9 out of 10 people (90%) who have LASIK end up with vision between 20/20 and 20/40—without glasses or contact lenses.