Problems with BoNT use in ophthalmology arise due to toxin diffusion or inadvertent placement into your adjacent muscles. Ptosis in the eyelid is the commonest complication of BoNT treatment of strabismus and blepharospasms.23 While this effect is almost always temporary and self-resolving, apraclonidine 0.5% (Iopidine) or phenylepherine hydrochlor… Read More