Posts Tagged ‘Lasik eye surgery’

How Lasik Eye Surgery Works?

Tuesday, November 9th, 2010

A person wearing glasses or contacts will ask for refractive surgery because this simple procedure reshapes the corneal tissue and corrects any existing refractive errors.

Photorefractive keratectomy (PFK), Radial keratomy and Lasik vision surgery are all current procedures but the medical experts consider the latter as being the most affordable and fastest one.

After a Lasik vision surgery, 99% of the patients don’t need their glasses anymore while the same percent is used to determine the visual acuity. This type of surgery is a delicate mixture of laser treatment and surgical procedures.

At first the surgeon creates a flap and lifts it to one side so that he can use the laser to reshape the cornea. There are a few risks involved here because the major optical function of the eye is altered by this refractive surgery.

That’s why it’s very important that your surgeon explains you all the risks and complications, the side effects and also the limitations of this procedure.

Lasik vision surgery won’t interfere with your eye’s aging process. If you choose to have this procedure because of occupational vision requirements then there’s a big chance that both you and your boss will be pleased with the results.

In order to be a good candidate for the surgery, the patient must be at least 18 years old and must have a normal corneal structure. Also, before the procedure the lenses are strictly forbidden (3 weeks for soft lenses and 4 weeks for hard ones).

The procedure is not performed on patients that suffer from any condition that can affect the corneal wound healing (immunosuppression, corticosteroid use, etc.) or on patients that have untreated superficial eye disease.

Diagnostic Overview

An improvement over PRK, Laser-assisted In Situ Keratomileusis removes a stromal layer by flattening the curvature of the cornea. Using a microkeratome, the doctor creates a corneal flap and retracts this tissue less than 1/3 of the thickness of a human hair in order to access the corneal stroma and use the excalculated measurements.

Next, he rolls back and repositions the corneal flap.

Lasik surgery provided great results in correcting residual myopia that usually appears after cataract surgery. It is safe (safer than PRK), stable and predictable, it causes less post-op discomfort and involves only a few minor side effects.

Not to mention that after the surgery, the patient has no corneal haze and there’s no need for complicated postoperative care. Even so, you should be aware that any complications are more severe than the ones with PRK because the laser works on a deeper level of the cornea.

After Lasik vision surgery, the DLK must be taken into consideration because this is a non-infectious, peculiar and inflammatory reaction in the lamellar interface.

To be more precise, for a multi-factorial cause in the first week after the surgery may occur a diffuse, white, culture-negative, granular lemellar keratitis.

Who can not get Lasik eye surgery?

Monday, November 1st, 2010

It is true that many people have received lasik eye surgery. Especially, there is a trend that more and more people decide to get it as arising achievements are scored in the field. But this surgery is not suitable for all people due to different reasons. In addition, it also involves some complications and side effects, though rare. Therefore, people should spend more time learning this procedure before getting it.

Usually, Lasik eye surgery is particularly suitable for people with myopia, hyperopia and astigmatism. And the success rate of this surgery is also determined by many other factors, like receivers’ eye condition, physical health, etc. This is also why an eye exam is needed before the surgery.

Like many other laser or non-laser eye surgery, Lasik may also cause risks or complications sometime. If this occurs, some further surgeries are needed. But in serious cases, people have to suffer from permanent vision problems. And there are still some ways to reduce the possible risks and complications if people can know something more before, in and after the surgery. Of course, some problems or potential risks can be detected by eye check before the surgery.

It is true that success rate for lasik surgery becomes higher than ever before. This is also why more and more people tend to receive it, like military troops.

Before the surgery, a comprehensive eye exam will be operated and some potential problems can be detected. Especially, the exam can tell whether or not people with sensitive eyes can get it. In addition, sufferers of other eye problems are still not good candidates for this surgery.

However, lasik eye surgery can still ensure greatly high success rate, though there are still some risks and complications. And the recovery of the surgery is determined by many factors. In particular, following eye surgeons’ advices is one of the most important factors for the surgery.