(Doug Lira/Strange World)
There are several factors. An adult, who has never had a squint, can develop the disease due to metabolic diseases (diabetes and thyroid disorders), high blood pressure, stroke, high myopia, traumatic brain injury, etc. The good news is that many cases can be reversed with treatment.
The strabismus that affects children is still a mystery to medicine. The deficiency is believed to be caused by a derangement in the development of the ocular and brain systems, as well as hereditary factors, tumors, cerebral palsy and other neurological disorders.
– (Doug Lira/Strange World)
Strabismus occurs when the cerebral cortical mechanisms are affected by disease or trauma. They control eye movements to keep them parallel – which is essential for the captured images to be equal and synchronized.
–if there is a alteration, the eyes deviate and move in different directions. Without parallelism, the person cannot see the same image with both eyes, having a double vision. All objects appear flat and without depth. Deviation can be classified as:
1) VERTICAL When one eye is lower than the other
2) CONVERGENT When the eyes line up very close to the nose
3) DIVERGENT When the eyes turn to the outer corners
– (Doug Lira/Strange World)
Before starting treatment, it is necessary to treat the disease that caused the strabismus so that the problem does not recur. Surgery and eyeglasses are the most commonly used options in adults. In children, the priority is to correct vision in both eyes before improving aesthetics. Even if the patient undergoes treatment and the strabismus is no longer apparent, he will always have a small ocular deviation.
DIFFERENT LOOKS
The types of strabismus and how they present
– (Doug Lira/Strange World)
CONCOMITANT
The angle of deviation of the eyes is permanent and constant in all directions of gaze.
– (Doug Lira/Strange World)
INTERMITTENT
When eye deviation appears from time to time.
– (Doug Lira/Strange World)
LATENT
It only appears with some kind of stimulus and is diagnosed only with eye exams.
CONSULTANCY Mariza Polati, ophthalmologist and head of the Strabismus Service at HC USP and Mônica Cronemberger, ophthalmologist and head of the Ocular Mobility sector at Unifesp