Archive for November, 2008

What Is Corneal Ring Vision Correction Surgery

Thursday, November 6th, 2008

Corneal ring vision correction is a procedure where corneal ring segments or intacs are placed into the cornea to help correct vision anomalies. A small cut is made in the top of the cornea so that the intacs ring segment can be put into position. Two of the implants are used per eye. When this is completed the slits in the eye created by the surgeon are closed by using a stitch that is removed in a few weeks or sometimes sooner. It is a very straightforward and well-established procedure and is not likely to create any harmful side effects or complications.

Although the procedure involves a minimum of surgical intervention it can create a small amount of discomfort in some patients. If you experience any discomfort as a result of corneal ring vision correction you should ask your doctor whether it is appropriate to take any antibiotic or steroid drops. This will usually alleviate the problem but if you suffer any further difficulties or setbacks you should always contact your doctor or the surgeon who performed the operation to seek additional medical guidance. There are not usually many problems with this treatment, and any difficulties are usually minor but it is always worth contacting your doctor or surgeon if you are worried.

After you have had your corneal ring vision correction surgery your vision may not initially seem to be much better or improved over your eyesight prior to surgery. In fact, it can seem to be slightly blurred. This condition will usually improve within a few days and then you will see the vast improvement in your vision due to the surgery. However in a majority of all cases most people do find that their vision is improved immediately and notice it getting even better in the ensuing few days following the operation. In fact, some people find that their vision is good enough to drive on the day after the operation. Even if you can see clearly in a short amount of time you should always be cautious and it is better to wait to start driving until you are satisfied that you can truly see clearly and have tested that your vision is good enough.

When deciding whether to have corneal ring vision correction it is better, rather than just reading about it, to go and see your doctor and ask him or her to recommend a good eye specialist or ophthalmic surgeon that you can talk to and discuss the options and whether it is useful treatment for you and appropriate for your visual impairment. You can also discuss the cost implications of the various treatments available, and whether this is the best type of surgery to correct your vision.

Timothy Gorman is a successful Webmaster and publisher of Vision-Doctor.com. He provides more eye surgery solutions, LASIK information and details on corneal ring vision correction that you can research in your pajamas on his website.

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Wavefront - Better Than Conventional LASIK Eye Surgery

Tuesday, November 4th, 2008

Traditional LASIK surgery achieves a simple correction of focusing power by reshaping the cornea with the aid of a laser. Wavefront LASIK is a variation of that conventional procedure and accomplishes a spatially varying correction based on readings from a wavefront sensor. In essence, a wavefront sensor measures the eye itself. It detects any aberrations by directing a weak laser source into the eye, and by sampling and processing the reflection off the retina.

Wavefront measurements reveal the irregularities of the lens, which cause optical aberrations (any deviation from a desired perfect planar wavefront). Wavefront custom sculpts the cornea to accomplish corrected vision. In many ways, Wavefront offers better results than traditional LASIK. The procedure is carried out by an ophthalmologist, with the aid of sophisticated computer-controlled equipment.

LASIK has certain potential side effects including halos or glare, which are caused due to induced spherical aberration. Wavefront has helped reduce instances of such cases where patients complain of post-operative halos or glares. A drop in such complaints is owing to the precise measurements provided by the wavefront sensor.

Thus Wavefront can help achieve a more optically perfect eye, since the corneal tissue area to be carved is measured more precisely using advanced technology and tools. But, wavefront aberrations are not the sole cause for all types of vision impairments. Therefore, Wavefront LASIK should not be treated as a panacea for all kinds of vision defects. However, eye surgeons claim that a great deal of success has been accomplished in patient satisfaction, relative to earlier refractive surgery procedures.

Though wavefront technology has been used for years by astronomers who require adjusting their telescope optics, its application to human vision has been discovered only recently. It’s true that Wavefront is a superior procedure, but it’s certainly not required by or suitable for everyone. It is imperative that you go through an elaborate wavefront diagnostic to determine if you are a potential candidate for it.

Nicola Kennedy publishes articles and reports and provides news, views and information about custom wavefront LASIK at Your Lasik Information. The LASIK Surgeons Directory will help you find a LASIK doctor.

This article may be reprinted in full so long as the resource box and the live links are included intact. All rights reserved. Copyright Your-LASIK.info

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What Are Your Chances Of 20-20 Vision After LASIK Eye Surgery

Monday, November 3rd, 2008

You might have come across eye centers touting outrageous offers of “20/20 vision or your money back”. The whole concept of 20/20 vision has been ballyhooed immensely when it comes to laser eye surgery. In essence, the value 20/20 refers to a way of measuring visual acuity via the Snellen eye chart - the same old alphabet chart that you might have seen at a nearby eye care center. As an instance of Snellen measurement, people with 20/40 vision can see clearly at 20 feet what people with 20/20 vision can see clearly at 40 feet.

With the latest technological advancements in laser eye surgery, the conventional LASIK procedure has been augmented with superlative techniques like wavefront LASIK, and its add-on, iris registration. With such enhancements there is an even greater chance of 20/20 vision relative to that with conventional LASIK. By wielding wavefront technology there is a great, around 95%, chance of 20/20 vision. However, with the iris registration technology, the possibility of 20/20 vision skyrockets to an overwhelming 99%.

20/20 vision is what you aim for while undergoing any type of refractive surgery - it’s used as a benchmark. However, some people hold a somewhat dissenting opinion about 20/20 vision, as far as laser eye surgery is concerned. The argument put forth is that visual quality matters more than visual acuity. As is evident from a number of cases, laser eye surgeries, for instance LASIK, have potential complications. A patient might experience blurry vision, halos, ghost vision or double vision, glare, and starbursts surrounding light sources at night.

Normal vision is crisp and sharp. But after laser eye surgery, a person might have to deal with debilitating side effects, which typically diminish vision quality. Though the patient might still be able to decipher a 20/20 line on the Snellen chart, the vision might be blurry. Unless the complications subside, eye surgeons’ famous promise of 20/20 vision is merely a myth.

In general, the degree of refractive error and the pupil size are the only criteria while determining the candidature of a patient for laser eye surgery. Most patients are not tested on other grounds, such as contrast sensitivity, glare and depth perception. The data pertinent to such aspects is fairly anecdotal. A comprehensive preoperative test regime is necessary for achieving authentic 20/20 vision (with enhanced vision quality) after laser eye surgery.

If you find a LASIK surgery that you are confident with, you will be able to get more information about 20/20 vision.

The LASIK Surgery Directory - find a LASIK surgery. Nicola Kennedy publishes articles and reports, provides news and views about LASIK laser eye surgery and 20/20 vision at Your Lasik Information.

This article may be reprinted in full so long as the resource box and the live links are included intact. All rights reserved. Copyright Your-LASIK.info

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