Efficacy and Lateral Gaze Incomitance in Symmetrical and Asy
A Study was conducted for evaluation of asymmetrical and symmetrical horizontal strabismus surgery as regards efficacy and postoperative lateral gaze incomitance.

This prospective comparative interventional case series study included 40 patients of age more than 3 years with alternating horizontal strabismus. Patients were divided according to the type of horizontal deviation into esotropia and exotropia groups, which were further subdivided into asymmetrical and symmetrical subgroups in each type.

--A statistically insignificant difference was present in the success rate between the asymmetrical and symmetrical subgroups of esotropia and it was 100% in both exotropia subgroups.

--Lateral gaze incomitance results were different between esotropia and exotropia subgroups.

--In esotropia, a statistically significant difference was reported at 1 month, which became insignificant at 6 months and 12 months between asymmetrical and symmetrical subgroups.

--In exotropia subgroups, there was a statistically insignificant difference in lateral gaze incomitance at 1, 6, and 12 months.

Finally, for the treatment of simultaneous horizontal abnormalities in primary gaze without persistent postoperative lateral gaze incomitance, asymmetrical operation had the same efficacy and success rate as symmetrical procedure, notably in exotropia.

Source: https://www.dovepress.com/evaluation-of-efficacy-and-lateral-gaze-incomitance-in-symmetrical-and-peer-reviewed-fulltext-article-OPTH