Introduction - Van Herick
Narrow Angles (slit lamp only): This is a 51 year-old woman who presented with narrow angles diagnosed by her local ophthalmologist. She has no other known eye pathology. Her Van Herrick test shows extremely narrow angles with areas of apposition. Interestingly, this patient is myopic (-3.50 diopters). Primary pupillary block angle closure is quite uncommon in patients with myopia.
(This video is also shown in the Pupillary Block examples)
Van Herick Flat
Pupillary Block: This patient underwent a laser iridotomy and this video shows the very narrow angle before the iridotomy and the deeper angle post iridotomy using the Van Herick technique. (This video is also shown in the Pupillary Block examples)
Van Herick Angle Depth Estimation
