Cyclopentolate is a medication that belongs to a class of drugs called antimuscarinics. It is primarily used as a mydriatic (pupil dilator) and cycloplegic (paralysis of the ciliary muscle of the eye) during eye exams and surgeries. It works by blocking the action of the neurotransmitter acetylcholine on the muscles of the eye, causing the pupils to dilate and the ciliary muscle to relax. This allows for a better examination of the retina and other internal structures of the eye.
Cyclopentolate also has some side effects such as drowsiness, dry mouth, and blurred vision. It is available in multiple forms such as ophthalmic solution, ophthalmic ointment, and ophthalmic gel.