APPRAISE: Assessment of Pain and Posterior Synechiae Reduction With Atropine, an Investigation of Post-Surgical Eyes

Inclusion Criteria: * patient undergoing vitrectomy surgery * able to give informed consent Exclusion Criteria: * post-operative eyedrop regimens that include topical non steroidal anti-inflammatory medications * subjects with altered post-operative eyedrop schedule for enhanced inflammation control * documented allergy to atropine