The sign of Duane syndrome is the retraction of the eyeball when an adduction attempt is made, caused by a simultaneous contraction of the inner and outer rectus muscles.
Nystagmus is a severe form of oculomotor disorders, manifested in spontaneous oscillatory movements of the eyes and accompanied by a significant decrease in visual acuity - a vision. The development of nystagmus may be due to the impact of central or local factors.
One of the most frequently occurring sensory disturbances in monolateral strabismus is amblyopia, i.e., a functional decline in eye vision due to its inactivity, non-use.
The purpose of the operation with strabismus on the extraocular muscles is to achieve the correct position of the eyes and, if possible, restore binocular vision.
The ultimate goal of the treatment of friendly strabismus is the restoration of binocular vision, since only under this condition visual functions are restored and asymmetry in the position of the eyes is eliminated.
Paralytic strabismus is caused by paralysis or paresis of one or several oculomotor muscles caused by various causes: trauma, infections, neoplasms, etc.
Friendly strabismus is characterized by the preservation of the full volume of movements of the eyeballs, the equality of the primary and secondary angles of deviation, the absence of doubling, despite the impaired binocular vision.
The visual sensory system in children is able to adapt to pathological conditions (confusion and diplopia) through two mechanisms: suppression, abnormal correspondence of retinas.
