Using Botulinum Toxin A as an Adjunct in the Surgery of Large-Angle Sensory Exotropia and Abducens Nerve Palsy.

Regarding the review article by Escuder AG, Hunter DG, entitled "The Role of Botulinum Toxin in the Treatment of Strabismus" Seminars in Ophthalmology. 2019;34(4): 198-204, we cannot agree with you more with your point of view about the dosage preparation for botulinum toxin A (BTA) in the strabismus surgery. Moreover, we also included a case series that used BTA as an adjunct in the surgery for large-angle sensory exotropia and abducens nerve palsy.