Fundus Examination
Dilated fundus examination or dilated-pupil fundus examination (DFE) is a diagnostic procedure that employs the use of mydritic eye drops (such as tropicamide) to dilate or enlarge the pupil in order to obtain a better view of the fundus of the eye. Once the pupil is dilated, examiners use ophthalmoscopy (funduscopy) to view the eye’s interior, allowing assessment of the retina, optic nerve head, blood vessels, and other features.