Nidek Laser (EXCIMER Laser)
The use of the EXCIMER LASER in corneal refractive surgery has greatly increased the safety of the procedure as the refractive correction is achieved by removing as little as 10-20% of the total corneal thickness.
The EXCIMER LASER is a “cool” laser, and does not generate heat in the cornea. The laser energy destroys intermolecular bonds in the corneal tissue resulting in tissue removal by a process termed “photoablative decomposition”. The exquisite precision with which the tissue can be removed, and the absence of thermal damage, render this laser suitable for surgery on the delicate cornea.
Removal of corneal tissue alters the corneal contour. By specifically removing tissues from different portions of the cornea, the surgeon is able to correct the different refractive errors. Removal of the central corneal tissue in a circular fashion results in central flattening and corrects myopia.
How does Excimer Laser Work?
A recent advance in the treatment of such high refractive errors is a procedure termed Laser-Assisted In Situ Keratomileusis (LASIK). In this surgery, a flap of superficial corneal tissue is cut using a motorized blade. The flap is lifted exposing the underlying corneal stroma. The excimer laser is then used to perform the appropriate tissue removal in the corneal bed. At the conclusion of laser delivery, the corneal flap is repositioned in its original position. The flap adheres to the underlying corneal stroma without the need of sutures
The laser removes tissue from the center of the cornea (in the case of myopia) to flatten its curvature and correct nearsightedness. In the case of farsightedness, the tissue is removed from the periphery of the cornea to steepen its curvature. The laser essentially reshapes the cornea's front surface. To do this, the corneal stroma (tissue beneath the corneal epithelium) must be exposed. This can be accomplished by directly removing the corneal epithelium with a laser (PRK) or by creating a corneal flap with a microkeratome (LASIK).
The goal is to reshape the cornea so that rays of light that enter the eye are focused clearly onto the retina. The excimer laser produces a cool, ultraviolet beam of light (193 nanometers in length) that literally vaporizes the tissue as it breaks carbon-to-carbon bonds. The tissue is removed in a precise fashion on a microscopic level, leaving the adjacent tissues unharmed. This vaporizing process is called photoablation.
Advantages of Blade Free Lasik
The various advantages of LASIK LASER are as follows:
- Faster LASIK procedure time, increasing patient comfort
- Stronger, more secure LASIK flaps
- Improved corneal sensitivity
- Fewer dry eye symptoms
- More predictable corneal flap thickness
- Decreased risk of corneal abrasions during surgery
- Decreased risk of induced astigmatism after LASIK
Why to choose Manocha Eye Hospital
Manocha eye hospital is the most trusted eye hospital for Lasik Laser surgery because of the following reasons :
- One of the oldest hospital in Ambala performing Laser surgeries for last 19 years.
- Most advance Lasik Laser Machine by ABBOTT.
- Wer are performing average 600 Lasik Laser surgeries every year
- Affordable Prices
- Good surgical outcome
- Experienced Eye Surgeon.
Myths / Frequently Asked Questions about LASIK
- Do not touch your eyes with fingers. Mop tears with soft tissue paper. Do not use handkerchief
- Keep your eyes closed as much as possible after laser treatment on the laser day.
- Eye drops to be started on the laser day. Pull lower lid and place one or two drops on the eye in the gap between the lid and the eyeball
- Wear dark glasses continuously throughout the day for the first 3 days. On the first three nights, use protective eye shields provided to you by the LASIK centre. From 4th day onwards, use dark glasses only when outdoors up to 15th day. The purpose of dark glasses is to prevent your hands from rubbing the eyes. It also serves as a small protection against dust. Exposure to sunlight or room light is not harmful to the eyes.
- Stay in clean environment- Avoid kitchen and smoke for 1 week.
- Mobile phones may be used from the next day
- Computer use, watching TV, reading etc. can be started from the 2nd day in moderation. There may be strain on eyes initially which is normal.
- Take a bath neck down for 1 week. During this period, clean your eyelids lightly with boiled cotton once in the morning to remove deposits from the lid margin, taking care not to touch the black portion (cornea) of the eye. Wipe face lightly with a clean towel without rubbing your eyes.
- From 2nd week onwards, take a normal bath from head downwards with your eyes closed as a precaution. A little water entering your eyes now is a very low risk.
- After 2 weeks, you can return to normal bathing
- Light activities can be done the very next day. Do not do heavy exercises for 7 days. Sports activities can be done after 1 month.
- You can have your normal food after laser treatment.
- Avoid car driving for 2 days, and driving a bike for 2 weeks.
- Do not splash water into eyes for 2 weeks. Splashing water into the eyes as a habit is best avoided as it washes away all the natural oils of the eye, inducing dry eyes. Splashing to wash away some dust particle is acceptable
- Smoking and drinking to be avoided for two weeks.
- Do not use any eye make up for 2weeks. Threading of eyebrows may be done after 2 weeks taking care to avoid too much pressure on the eye.
- Facial massage should be avoided on the eye area for 3 months.
- Avoid vigorously rubbing your eyes for 3 months.
- Avoid swimming, water diving for 3 months.
- Cosmetic contact lenses can be used after 3 months.