Corrective Action Software Formulas Need Constant Review

2007-03-08 10:33:40

( Beauty )



When you are scheduled to undergo laser corrective eye surgery, your physician will be taking time to study the corrections to be made on your eye using corrective action software.

All corrective eye surgery procedures utilize lasers which are controlled by corrective action software, pre-installed by the equipment supplier. During your preparatory eye examination, the corrective action software guides the laser as it measures hundreds of spots on your cornea.

The corrective action software then uses the measurement data to calculate the appropriate pattern of laser spots to apply to your eye. During surgery itself, the corrective action software guides the laser to correct the flaws in your cornea exactly according to the pattern calculated beforehand. Your surgeon has to ensure that the calculations are right.

The corrective action software contains mathematical formulas that compute for the number of laser pulses to apply for any given degree of nearsightedness, farsightedness, or astigmatism. Since the software has been pre-installed, you will understand that the figures used in the formulas are only for the typical surgeon with average surgical technique, operating in a room with typical humidity and temperature.

Your eye surgeon knows that no two surgeons or techniques or rooms are identical. Thus using the pre-supplied corrective action software will produce only average results. To produce better results, surgeons alter the formulas. Their modifications are the result of systematic collection of data and analysis of results through statistical methods of regression analysis. This takes plenty of time and involves use of multiple regression analysis.

This need to make modifications on formulas in the corrective action software is a constant activity for your eye surgeon. Although this is time-consuming and difficult, your doctor performs the exercise, knowing that it is an important means for consistently achieving the best results for laser corrective eye surgery on your eye.


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