November 2026: Case on whether to dilate a patient with a narrow anterior chamber angle

Read through the scenario below, think about what you would do and then check our expert advice to see if we agree.

Case on whether to dilate a patient with a narrow anterior chamber angle

I often see older patients who have narrow anterior chamber angles on van Herick assessment. I worry about triggering an acute angle-closure attack if I dilate them, but I also do not want to miss peripheral retinal or optic nerve pathology. Should I dilate a patient when the angle is narrow? 

Our advice

Sign in to continue

Forgotten password?
Register

Not already a member of the College?

Start enjoying the benefits of College membership today. Take a look at what the College can offer you and view our membership categories and rates.