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Effects of peripheral redeepening on radial keratotomy surgery | JoVE Visualize

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Effects of peripheral redeepening on radial keratotomy surgery

S C Grandon, G M Grandon

Journal of Cataract and Refractive Surgery|May 1, 1987

View abstract on PubMed

Summary

Peripheral redeepening in radial keratotomy can add significant refractive correction. This surgical refinement offers an average of 0.47 diopters of additional correction, benefiting patients seeking maximum myopia reduction.

Area of Science:

Ophthalmology
Refractive Surgery

Background:

Radial keratotomy (RK) is a refractive surgical procedure to correct myopia.
RK outcomes are influenced by surgical parameters like clear zone size and incision characteristics.
Peripheral redeepening is a modification explored to enhance RK's refractive effects.

Purpose of the Study:

To evaluate the impact of peripheral redeepening on standard eight-incision radial keratotomy.
To quantify the additional refractive correction provided by peripheral redeepening.

Main Methods:

Analysis of radial keratotomy cases with a 3-mm optical clear zone.
Comparison of refractive outcomes before and after peripheral redeepening.
Statistical control for preoperative myopia, age, and other relevant surgical factors.

Main Results:

Peripheral redeepening resulted in an average additional correction of 0.47 diopters.
This effect was observed after controlling for preoperative myopia and patient age.
The additional correction was independent of other standard RK parameters.

Conclusions:

Peripheral redeepening is an effective technique to augment refractive correction in radial keratotomy.
This modification can be beneficial for patients desiring maximal myopic correction.
Further research may explore optimal application in diverse RK techniques.

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Effects Of Peripheral Redeepening On Radial Keratotomy Surgery