D.I. KOSHELEV, G.N. REZBAEVA, I.V. SIROTKINA

All-Russian Eye and Plastic Surgery Centre of the Ministry of Healthcare of the Russian Federation, 67/1 Zorge Str., Ufa, Russian Federation, 450075

 Koshelev D.I. — Cand. Biol. Sc., Associate Professor, Head of the Neurophysiology of Vision Laboratory, tel. (347) 293-42-11, e-mail: koshelev_d@mail.ru

Rezbaeva G.N. — Head of Children’s Consultative Department, tel. (347) 293-42-19, e-mail: centre@alloplant.ru

Sirotkina I.V. — researcher of the Neurophysiology Laboratory, tel. (347) 293-42-11, e-mail: centre@alloplant.ru

 The fixation microsaccades of 79 patients with progressive myopia in age from 7 to 15 were analyzed. The significant variation of fixation microsaccades characteristics was found. The research revealed significant correlations between the size of fixation area, the average speed of eye movements during fixation and the patient’s age. It was discovered that by the age of 11, the narrowing and stabilization of fixation area takes place. Some features of fixation eye movements in children with progressive myopia were revealed: the reduction of rhythmical microsaccades with an amplitude less than 15 minutes of arc and frequency about 8 Hz and the marked difference in composition of microsaccades between right and left eye. It is possible to distinguish several typological groups based on characteristics of the fixation microsaccades. Studying the fixation eye movements in complex with the other methods allows evaluating the functional integration of sensory and motor components of visual perception in patients with progressive myopia in more detail and creates premises for the elaboration of individual prophylactic and therapeutic programs. Furthermore, the registration of fixation eye movements could be a means of objective monitoring of the visual functions development and the features of visual perception.

Key words: progressive myopia, fixation eye movements, rhythmical microsaccades, objective monitoring.

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