Problems with BoNT use in ophthalmology crop up due to toxin diffusion or inadvertent placement to the adjacent muscles. Ptosis on the eyelid is the commonest complication of BoNT treatment of strabismus and blepharospasms.23 Although this outcome is nearly always non permanent and self-resolving, apraclonidine 0.five% (Iopidine) or phenylepherine … Read More