Cyclopentolate ophthalmic relaxes muscles in your eye to dilate (widen) your pupil. Cyclopentolate ophthalmic is used to dilate your pupil in preparation for an eye exam. Cyclopentolate ophthalmic may also be used for other purposes not listed in this medication guide.
Cyclogyl is an eye drop with an anticholinergic agent. It contains cyclopentolate hydrochloride, an active ingredient that belongs to a class of drugs known as cycloplegics or mydriatics. It is used to dilate or enlarge the pupil of the eye and to prevent the eye from focusing. Doctors may use this drug before performing a surgical procedure or prior to doing an eye examination.