mydriatikum
Mydriatikum is a pharmacologic agent used to induce mydriasis, the dilation of the pupil, in ophthalmology. It is typically applied as topical eye drops and serves to facilitate slit-lamp examination, retinal inspection, laser procedures, and preoperative pupil dilation for cataract surgery. Mydriatics may act by blocking the iris sphincter muscle (antimuscarinic or parasympatholytic agents) or by stimulating the iris dilator muscle (sympathomimetic agents); many regimens combine both mechanisms to achieve rapid and sufficiently sustained pupil dilation, often with some cycloplegia.
Common antimuscarinic mydriatics include tropicamide and cyclopentolate, which provide short- to intermediate-acting dilation. Atropine is a
Clinical use typically involves one or more drops in the affected eye, with timing and repetition tailored
Contraindications include known hypersensitivity to the drug class and conditions associated with narrow-angle glaucoma, as mydriatics