ATROPINE is a potent anticholinergic (parasympatholytic) drug. Its instillation to the eye produces pupil dilation or cycloplegic refraction, resulting mydriasis (increase of the size of pupil) and cycloplegia (blurred vision for close distance) of few days duration.

It is applied as a mydriatic for therapeutic and rarely for diagnostic purposes and as cycloplegic for checking refractory disorders (skiascopy). It is used in acute and chronic inflammatory conditions of iris and uveal tract, independent of their aetiology.