SAFETY AND PRECISION IN LASIK WITH THE WAVELIGHT 500 HZ WAVEFRONT TECHNOLOGY

INTRODUCTION

LASIK an acronym for LAser in SItu Keratomileusisis is a way of re-shaping the outside area of the eye [the cornea] to fix reduced, average and large examples of nearsightedness, astigmatism and far-sightedness. With this technique one eliminates their spectacles or contact lenses. It has been practiced inside our place going back 6 to 7 years. The most recent development in the LASIK procedure is wavefront-guided LASIK. Wavefront techniques often leave patients with eyesight a lot better than normal. Additionally the best candidates tend to be those who have undergone older practices of vision correction and have now been disappointed with the results.

HOW IS WAVEFRONT LASIK DIFFERENT FROM THE STANDARD LASIK

Like our fingerprints, every one of our eyes is significantly diffent and has a unique distinctive form and aesthetic characteristics. Wavefront Advised LASIK grows individualized pc software therapy options for every eye. Unlike the standard LASIK procedure which only corrects refractive mistakes (myopia, hyperopia and astigmatism) and repeatedly defines 20/20 vision, Wavefront LASIK goes beyond only improving refractive mistakes to actually increasing aesthetic features therefore you might see a lot better than you did with cups or lenses before the process, ergo increasing your 'Visible Acuity' ;.
The aesthetic system is really capable of viewing 20/10 or greater, that is letters twice as small as the 20/20 letters on an eye chart. Most people cannot see beyond 20/20 due to very refined problems inside their aesthetic system. Utilizing the Wavefront technology, it is probable to first chart these refined aesthetic problems and then produce a laser therapy program to fix them.
The important thing to Wavefront therapy is really a device named a Wavefront Analyser or aberrometer. That projects an excellent grid of 168 mild supports onto the retina and catches its image employing a high resolution CCV camera. That image is then weighed against one from a normal vision and the big difference between the 2 provides a "Wavefront Map" that will be used to plan the laser.

This implies we are able to measure both extent of bad vision and its triggers with higher precision than it has ever been probable before.

With normal techniques there might be cases of volatile benefits where refined internal optic mistakes, instead of getting treated, are more magnified. That may lead to unhappiness following the standard procedure of LASIK. With wavefront LASIK these mistakes can be fixed to achieve great results.

CANDIDATES FOR LASIK

A few of the frequent reasons why persons undergo LASIK are due to contact contact intolerance, cosmetic reasons, cultural (marriage), tired of wearing cups, and life style actions that are inhibited as a result of cups or contact use such as for example outdoor activities like tennis, football, water activities or hiking. Spectacles are cosmetically unpleasant for some. There is a degree of distortion when looking through the periphery of the cups, the area of vision is reduced and on making a cool room moisture may fog the cups and blur vision for a few minutes. Hence cups are improper for several professions including the Army, Vendor Navy, Airlines, Air Force, Railways and professional sports. Lenses involve awareness of hygiene all through attachment and elimination declining which sight-threatening attacks might result.
Wavefront LASIK overcomes all these disadvantages.
With Wavefront led LASIK it has now become probable to take care of a bigger spectral range of patients. That procedure particularly assists to possess distinct vision in dim mild, which will have usually been hard with the older procedures. Moreover, those who have been disappointed with any kind of vision correction are candidates for Wavefront led customised treatments.

WHAT IS 'WAVEFRONT' ?

The cornea is preferably expected to truly have a smooth curvature. The incident mild slipping upon it is in the shape of a clean curve, called a 'wavefront' ;.As that smooth wavefront classes through the various parts of the eye and their problems, ocular aberrations are activated, which degrades the retinal image quality. An aberration-free vision might result in a smooth wavefront image on the retinal area, achieving the most useful optical quality and 'supernormal' vision that is frequently significantly a lot better than 6/6. Wavefront-guided personalized LASIK, also called 'personalized ablation' works improvements based on specific wavefront measurements, which potentially advances the likelihood of a lot better than standard eyesight.

ADVANTAGES OF WAVEFRONT- GUIDED LASIK OVER STANDARD LASIK

New studies show that

e 100% patient satisfaction with minor side effects or complications.

e 70% of the patients obtained someone to two lines of aesthetic acuity significantly more than that which was estimated out of this therapy before the procedure.

e 16% of wavefront-guided LASIK patients achieved a post-procedure uncorrected aesthetic acuity of 6/3 [3 lines smaller than normal].

e Wavefront therapy effects were found to supply stable, exact post-operative results.

e The incidence of post-operative indicators such as for example glare, haloes, lowered distinction tenderness and bad night vision as with normal LASIK are often absent or considerably reduced with wavefront treatments.

e Wavefront-guided therapy has applications in complicated post-refractive surgery (RK, PRK, LASIK) patients (with substantial indicators, decentred treatments) in addition to in patients appropriately requiring intense vision.

FEATURES OF AN IDEAL LASER

The WaveLight is the ultimate laser for wavefront techniques using the quickest and many sensitive vision tracker in the world [500 Hz] to ensure perfectly exact and well-centred treatments.
That laser has the fastest therapy time [500 Hz], a significant factor in ensuring uniform therapy around the entire area of the cornea by minimizing contamination of the cornea and other outside influences throughout the procedure. Also the Concerto customizes corneal form not merely to enhance aesthetic acuity but in addition to enhance distinction especially in dim mild conditions.
The extremely advanced WaveLight laser works on the 'Flying Spot' of 0.9 mm, essential to allow for accurate keeping laser treatment. This type of therapy leaves nothing to chance or chance. Wavefront techniques often leave patients with eyesight a lot better than standard [super - vision or eagle vision].

The WaveLight Concerto saves upto 40% of valuable corneal tissue for every dioptre of therapy when compared with public nostr relay lasers. That benefits in a doctor being able to address a greater energy range keeping in mind long-term protection in addition to treating lower forces with unparalleled stability.

FDA COMPARISON OF EXCIMER LASERS

In the contrast over, that the issues of glare, night vision issues and variations are high [upto 50% patients] in one laser [Nidek], within the rest these are really small and in the Wavelight it is practically negligible.

In that contrast, it's possible to observe that whilst the refractive energy [spectacle number] gets larger, the outcomes of exact 6/6 standard vision fall down with many lasers nevertheless the Wavelight benefits stay over 90%. These answers are with the earlier technology of the Wavelight laser ie. 200 Hz. The most recent laser of 500 Hz is much more accurate.

EVALUATION OF A CANDIDATE FOR THE LASIK PROCEDURE

An entire vision review is needed to check always a patient's suitability for LASIK.
Tests contain refraction, distinction tenderness, pupil measurement, pupil response, retinal examination, tonometry, pachymetry, aberrometry, topolyzer measurements, topography and tests for dry vision amongst others. Patient counseling is really a very substantial part of the pre procedure work-up.
LASIK evaluation and testing with the topography and aberrometer decides which of the 2 techniques normal LASIK or wavefront LASIK might apply for the patient.

THE LASIK PROCEDURE

It is really a pain- free outpatient procedure that usually takes five minutes per eye.
The actual laser therapy usually takes less than the usual minute. External anaesthetic lowers are used. All through the treatment, an instrument named the microkeratome produces a corneal flap. The online Excimer laser works on the cool order of mild to lightly improve the cornea in order to alter its curvature to the specified extent. The flap when changed on the new corneal curvature allows pictures to be sharply centered on the retina. A post-procedure vision examination with the slit lamp is conducted and vision lowers are prescribed.

RECOVERY

A noticable difference in vision is recognized within 4-6 hours with repair of practical vision by the following morning. Total healing will take upto 48 hours