Immobility of the pupils, Paralytic

Fixed pupil (Anisocoria - anisocoria or heterocorium) is a condition in which the pupil of one eye is smaller in size than the pupil of the other eye. This condition can be caused by a variety of reasons, including eye disease, injury, and side effects from certain medications. In this article we will look at paralytic immobility of the pupil (i. Pupillarum Paralyticus).

Paralytic immobility of the pupil is a consequence of paralysis of the sympathetic nervous system, which leads to a decrease in the ability of the pupil to respond to changes in light. This may be due to a number of medical conditions, including nerve diseases or



The pupils are the front transparent part of the iris of the eye, which is responsible for changing the size of the pupils depending on the intensity of light. Their round-oval shape corresponds in size to the average size of the other pupil and represents an optical focus. Iris paralysis (fixed pupils) is a condition in which the pupil does not move in response to light/dark stimuli. Caused by damage to the muscle fibers of the ciliary muscle, which is responsible for its movement.

Paralysis of the pupil is defined by the inability or extremely slow change of state (constriction in bright light and expansion in darkness). Pupillary paralysis is diagnosed only when there is a complete lack of reaction to light or a change in the diameter of the pupil of the eye. In this case, the pathology occurs as a result of damage or damage to the optic nerve or other structures