What is the follow-up interval for Adie tonic pupil?

• A. 1 year
• B. 1 month
• C. 5 years
• D. 1 week

Answer: (A)

Adie tonic pupil is a benign, usually unilateral dilation with a slow or absent light reflex due to dysfunction of the iris sphincter and nearby autonomic pathways. Because the condition tends to be slowly progressive and often remains stable over time, the follow-up interval is typically about one year. This frequency allows clinicians to document stability, monitor for any late or emerging changes in pupil size or reactivity, and screen for any associated signs or symptoms (such as near-focus abnormalities or autonomic features) without subjecting the patient to unnecessary frequent visits. Shorter intervals like weekly or monthly aren’t needed given the slow course, and longer gaps like several years could miss gradual progression. If new symptoms develop or there are noticeable changes on exam, the follow-up can be brought forward accordingly.