Issues with BoNT use in ophthalmology arise on account of toxin diffusion or inadvertent placement in to the adjacent muscles. Ptosis from the eyelid is the commonest complication of BoNT treatment of strabismus and blepharospasms.23 While this effect is almost always non permanent and self-resolving, apraclonidine 0.5% (Iopidine) or phenylepherine… Read More