Investigation of Differences in the Techniques of Experimental Vitreo-retinal Operations on Laboratory Animals

Abstract

The continuous development of vitreoretinal surgery makes it possible to provide high-tech care to patients with retinal detachment while minimizing intraand postoperative complications. However, their percentage still remains significantly high. This pushes modern ophthalmological science to new research and search for solutions to existing problems. In this task, laboratory animals, on which the latest advances in medicine have been tested for more than 100 years, help like no one else. Unfortunately, the high cost of experiments often repels and/or pushes them back indefinitely. Given the clinical significance of experimental studies of surgical treatment of retinal detachment, as part of the study of the new hydrogel preparation Vitreolon, an analysis was made of methods for removing the vitreous body and their effect on the result of surgical intervention.Purpose: analysis of differences in vitreous removal techniques in laboratory rabbits.Material and methods. The experiment involved 6 rabbits (12 eyes) with induced retinal detachment. In 6 eyes, vitrectomy was performed using a vitreotome, in the others, using a syringe (21G). Subsequently, tamponade of the vitreal cavity was performed with the new hydrogel preparation “Vitreolon”. Ophthalmological examinations were performed on the 1st day, 1st and 2nd week, 1st and 3rd months after surgery. After that, the eyes were enucleated to conduct a morphological study of macropreparations and histological sections of the eyes.Results. According to the results of ophthalmological and laboratory studies, there was no statistically significant difference between the techniques for removing the vitreous body. One rabbit had hypertension and cataracts, which indicates its individual response to surgery. There were no complications that could lead to early termination of the experiment.