Troubles with BoNT use in ophthalmology crop up as a result of toxin diffusion or inadvertent placement to the adjacent muscles. Ptosis in the eyelid is the most common complication of BoNT treatment of strabismus and blepharospasms.23 While this influence is nearly always short-term and self-resolving, apraclonidine 0.5% (Iopidine) or phenylepheri