Abstract:

Intermittent exotropia is the most common type of exotropia with an approximate proportion of 44.9%. The natural history of intermittent exotropia includes developing into the constant exotropia, or returning to orthophoria, or deviation degree remaining unchanged. The current treatment options include surgical treatment and non-surgical treatment. For non-surgical treatment, there're several choice, such as observation, correction of refractive error, occlusion, prism, botulinum toxin type A, and so on.  (Int Rev Ophthalmol,  2017,  41:   23-27)