Courtesy of Rod Foroozan, MD.
File Size:
45 KB
Neuro-Ophthalmology/Orbit
Sectoral palsy of the iris sphincter in Adie tonic pupil. The pupil is not round. The sphincter contracts best along its superior sector, seen as a puckering or “bunching up” of the iris stroma. The sphincter is paralyzed between the 7 o’clock and 9 o’clock sectors (arrows); the adjacent area of iris stroma appears thinned out and flattened.