This is a condition where parallelism between the eyes are lost and one eye focuses on an object where the other cannot. Overaction or underaction of some of the 6 muscles holding the eye results in squint, sometimes in both eyes. The incidence in society is 4% and there is no sex difference.
Nonparallel look in the eyes, pain and wetting in the eyes, double vision, lack of depth of vision and tilted head position are the symptoms.
It is of big importance that children are examined ophthalmologically before the age of 1. Even if squint cannot be diagnosed in a child of 1 year, he/she should be examined at 3-4 ages again and before primary school starts.
The treatment varies with the type of squint and it is planned according to the reason of squint. If present, lazy eye should be treated, then parallelism is maintained via surgery. The early treatment begins, the less is the possibility of a lazy eye. Some of the squint types require surgery whereas some are healed in a nonsurgical way.