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 clip is filed under both Examples: Pupillary Block and Techniques for Difficult Angles: Van Herrick.