วันเสาร์ที่ 19 พฤษภาคม พ.ศ. 2555

Five Things About Lasik Eye surgery

Flap Surgery:

Lasik eye surgery has helped millions globally to see great without using glasses or feel lenses. It is the most beloved refractive surgical procedure because there is dinky or no pain and restored foresight occur the next day. Lasik is an acronym for laser assisted in- situ keratomileusis.

Five things you should know before committing to Lasik eye surgery are listed below. 1. What is Lasik? It is a refractory surgery procedure for correcting near and far sightedness. While the procedure a thin flap is created either by a cutting instrument called microkeratome or by the newer IntraLase laser. The surgeon lifts the flap, then removes (ablates) the required corneal tissue with an excimer laser to reshape the cornea.

The flap is then supplanted over the area where the tissue was ablated. This flap acts as bandage over the treated cornea. The doctor performing the procedure uses a computer to suspect and adjust the laser for the singular refractive problem.

Flap Surgery:Five Things About Lasik Eye surgery

2. What to do before Lasik eye surgery? If you are seriously considering this procedure, the most leading thing to do is find a reputable and experienced eye surgeon. A good surgeon reduces the risks of complications. The eye scholar will gawk you to rule your optical defect, and the level of laser ablation necessary.

If you have dry eye disease, rehabilitation will be important before the procedure. A map of the cornea will be created by a corneal topographer, and you may have a wave front prognosis that categorically maps out the area of optical refractive defect. Your doctor will assess your general condition and medication and rule either you qualify on condition grounds for Lasik eye surgery.

If you are not offered a patient facts booklet, ask for one. Before Lasik rehabilitation you should know what to expect following the procedure. You are more likely to be satisfied if before treatment, you know the outcome and fully understand the risks and complications.

3. What happens While Lasik treatment? This rehabilitation is short and you are awake throughout. The surgeon may give you a mild sedative tablet before the procedure. Even though you will walk out of the rehabilitation centre, you should be accompanied to make sure you get home safely. The surgeon will put anaesthetic drops into your eye, and while you lie down, he or she will align the laser directly over your eye.

Your eye will be kept open and pressurised by a retainer with a suction ring. The surgeon will mark out the area of the cornea. The flap is then created either by a microkeratome or IntraLase laser. The flap is lifted. You will then be asked to focus on a light source while the excimer laser delivers pulses of high beam light on to the cornea.

The laser will produce a consistent clicking sound While treatment. You may note an acrid smell While treatment. The time taken depends on the extent of your refractory problem. The flap is replaced. You will then rest for a while.

4. What are the complications? In the past, following Lasik eye surgery, there were as much as 5% of people that experienced one or other important problem. Today the complications are much less and the commonest ones are haze, halos and glare. Problems often results from the hinged flap especially if it does not bond to exterior properly, or it is cut too thin or thick.

These problems are irregular astigmatism, keratoconus or diffuse lamellar keratosis (Dlk). In astigmatism, you may have double foresight or ghost images. In Dlk, debri produce inflammation under the flap. Urgent rehabilitation will cut potential permanent optical loss. In keratoconus, the exterior bulges. This can happen if the flap is too thick. Up to 50% complain of dry eyes after Lasik eye surgery. Most disappear after 6 months. Synthetic tears will help. There may be under revision or over correction. Eye infection or irritation is uncommon but will want treatment.

5. What to expect? While the estimate stage, make sure you know what you should expect following surgery. You should expect 20/20 foresight or great but 20/40 or great is good sufficient to drive without glasses or feel lenses. A study by Us soldiery on 16,000 army personnel following Lasik eye surgery, in the middle of 2000 and 2003 showed that 86% had 20/20 or great foresight and 98% achieved 20/40 foresight or better. If the expected outcome does not meet your expectation, then you have to make an informed decision based on the expected results, risks and cost.

Flap Surgery:Five Things About Lasik Eye surgery

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