Wave Front

Before                                           After





The Wavefront Analysis – As Unique As Your Fingerprint

An instrument called the Aberrometer maps the errors in the optical system of the eye [wavefront analysis], which is linked to the laser before treatment. The wavefront analysis is customized for the individual and hence offers the most ideal treatment available for the patient from all currently known vision correction procedures.
Wavefront Analysis sensing / Measurement

In India, Shroff Eye is one of the only LASIK centres to have this Aberrometer, which is the true way of performing wavefront LASIK. Many centres boast of wavefront laser technology, however, do not use equipment to collect data with the wavefront analyser, ending up doing standard or conventional LASIK on a wavefront laser, and this fact is many times not even known to the patient, who assumes that he/she has undergone wavefront LASIK! Very simply, if there is no wavefront analysis, there can be no wavefront custom LASIK or laser treatment!

In this test, a square grid of 128 thin parallel and equidistant rays is projected into the eye.

The pattern of distortion of the regular grid determines the optical errors of the eye. In an aberration-free eye the grid pattern projected on the retina would remain unchanged and deviations of each spot when present are measured by means of a computer.

The Aberrometer captures five consecutive wavefront analysis measurements through a dilated pupil to map all the aberrations.

These maps are then used to generate a composite wavefront profile, which in turn guides the laser treatment profile and spot pattern.

Wavefront analysis-guided LASIK now makes it possible to treat a larger spectrum of patients. The WaveLight 500 Hz Laser offers individuals who are not entirely satisfied with their outcome of earlier treatments such as radial keratotomy [RK], PRK or even LASIK on first generation excimer lasers, the benefit of a topography-linked procedure [mapping the irregular corneal surface and making it regular]. This procedure gives the best possible uncompromised vision.

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