Saratov JOURNAL of Medical and Scientific Research

laser surgery

Computer analysis of corneal aberrations in relation to the tasks of laser surgery of the anterior segment of the eye

Year: 2019, volume 15 Issue: №2 Pages: 425-428
Heading: Ophtalmology Article type: Original article
Authors: Bakutkin V.V., Bakutkin I.V., Zelenov V.A., Nugaeva N.R.
Organization: International Consulting, Audit and Education Academy, Saratov State Medical University

Purpose: development of a method for computer analysis of corneal aberrations as applied to the tasks of laser surgery of the anterior segment of the eye. Material and Methods. As a result of mathematical modeling, an algorithm has been developed that is implemented as a computer program for selecting individual parameters of laser radiation depending on the optical characteristics of the cornea. Results. For astigmatism, it has been proposed to consider the topographic zones of the optical center of the cornea, 3.5 mm in diameter, and peripheral meridional zones. Aberrations at the periphery of the cornea increase by 10 %. At 1 and 2 stages of keratoconus, the rate of aberrations rises 2–3 times. In the third stage of keratoconus, in some cases keratometry and keratotopography is technically impossible. With pterygium 2 and 3 degrees, laser surgery in the peripheral zone of the cornea is impossible. Conclusion. Improving the efciency of laser operations is provided primarily by optimizing the impact parameters on the tissues of the anterior segment of the eye. The data on the types of corneal aberrations for various diseases, which indicate the need to change the parameters of laser exposure. The developed diagnostic algorithms are implemented as a computer program and allow you to optimize the parameters of laser irradiation of eye tissue.

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