Types of Squint

In lay terms, the word squint can just mean screwing up the eyes but here we are referring to a deviation of one eye from the line of sight. This might be present all the time or just when the patient is tired. It is important to notice whether the eye movements are normal. For example, if there is weakness of one lateral rectus muscle, the affected eye will not turn outward and the angle of the squint will be much greater when looking to that side. Most childhood squints are not associated with weakness of one or more extraocular muscles so that the angle of the squint is the same in all directions of gaze. The deviation of the squint can be horizontal or sometimes vertical or the eyes could be convergent or divergent.

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