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LASIK
Eye Surgery Information to help the
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A technician will begin taking a number of measurements. These will include your visual acuity with and without your current method of vision correction, whether that be glasses or contacts, a digital map of your corneal shape--called corneal topography--will be taken, a measurement of your pupils will be performed as detailed later, your prescription will be measured both in its natural state and after having drops placed in your eyes, in order to get final measurements of the prescription. A test will be performed to see which eye is your dominant eye, and most important, the thickness of your cornea will be measured to make sure you are indeed a good candidate for LASIK. Additional testing including your intraocular pressure will be conducted and observations will be made of the health of your cornea, lens and tear film using an instrument called a slit lamp. This is actually a microscope through which living tissue can be carefully examined. After the drops have had their full effect, the doctor will examine the health of your retina and optic nerves in order to give your eyes a "clean bill of health" for LASIK. In addition to the above testing, there are some additional specialized tests that will be conducted as discussed below.
About Pupil Measurement
An important measurement that will be taken involves carefully
measuring your pupil size in both bright and dark conditions. To
accomplish this an instrument called a pupilometer is used. This
instrument allows the technician to amplify light to see how small
your pupil becomes in bright light as well as uses infrared light to
see how large your pupils become in dark light. In this way the
surgeon can decide what an appropriate treatment zone might be for
your specific situation. This measurement and planning will help
ensure that you get the best possible results for your eyes.
About Wavefront Measurement and Aberrometry
As part of your comprehensive consultation or sometimes on your
treatment day, another measurement called wavefront refraction and
aberrometry will be taken. This is an extremely precise measurement
of your prescription that will include not only measuring your
nearsightedness, farsightedness and astigmatism, but also the
presence of high order aberrations that can effect night vision
quality, create glare, haloes and cause other imperfections. If you
are found to have these high order aberrations during your wavefront
measurement, the surgeon may elect to use a special version of the
laser eye surgery software to actually correct them by a technique
called Custom Wavefront Lasik Eye Surgery. Using advanced technology
such as wavefront measurement will help you achieve the best results
for your eyes.
Back
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Initial Patient Education
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Before Your Evaluation and Consultation ;
Next
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Your LASIK Decision Process ;
Arranging Your LASIK Surgery Day ;
The Actual Surgery Day ;
After You Leave Your LASIK Surgery Day ;
Post Operative Care
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