Shurygin reflex

The Shurygin reflex is a snail reflex that was first described by Soviet physiologist Boris Mikhailovich Gavrilov in 1927. Named after the journalist Yuri Shurygin, who managed to photograph and describe this reflex. The cochlear reflex is the contraction of the pupil and the turning of the eye towards the light in response to its appearance or a nearby light source, for example, a camera flash. This reflex is considered difficult to study, especially in the classical version. It involves many elements of the nervous system: the optic nerves, neurons in the retina and other layers of the optic tract, the brain, the visual center of the brain and the eye muscles that control the pupil. However, using modern diagnostic methods, this reflex can be recognized and observed quite easily. The method of its research is ophthalmological examination. A special slit illuminator is used with a mirror reflection in the form of a point of light (light bulb), which allows you to look through the cornea into the eyes of the subject of study. In addition to the classic cochlear reflex, sometimes there are other cases of its distortion, for example, a slower reaction of the pupil when