Modern methods of diagnosis in determining the level of visual pathway defect

In ophthalmic practice, there are diagnostically difficult cases when standard research methods do not allow identifying the cause of a decrease in visual functions. As a rule, in patients with transparent optical media of the eye, it is necessary to differentiate the pathology of the perceiving (sensory) part of the visual system and its proximal parts (visual pathways, visual cortex). These two levels of damage suggest different groups of diseases, differing in the set and urgency of the necessary diagnostic measures, the prognosis of visual functions and life prognosis. Rational use of modern highly informative methods of morphological and functional diagnostics allows to reduce the time of patient examination and to establish a reasonable diagnosis. The article presents a clinical example of differential diagnosis of the causes of visual impairment using the latest structural and functional research methods of the visual system.