New biophotonics methods for improving efficiency and safety of laser modification of the fibrous tunic of the eye

Abstract

Аномалии рефракции глаза-группа офтальмологических заболеваний, при которых снижение качества зрения обусловлено нарушениями фокусировки изображения на сетчатке. Последнее может быть связано с чрезмерным (при миопии), недостаточным (при гиперметропии) или неравномерным (при астигматизме) преломлением света. Способы коррекции аномалий рефракции широко известны и

Study of Laser Radiation Effect on the Cornea of the Eye by Speckle Interferometry

“…Using a laser helps changing the conformation of collagen molecules located on the periphery of the cornea and in the limb. The method uses a special header that creates a circular distribution of the intensity of laser radiation [8][9][10][11], that allows us to achieve a more uniform effect of the weakening of mechanical stresses and leads to a reduction in laser-induced complications, since symmetric with respect to the paracentral zone cornea, but sequential irradiation of a number of points can lead to asymmetry of the corneal tension in the optical zone and the occurrence of astigmatism, keratoconus and other complications [8]. In addition, research is being carried out in the direction of developing a control system that allows one to determine the threshold for the onset of stress relaxation in the corneal tissues during laser irradiation.…”