Assessing the Efficacy and Safety fo DEXTENZA, Sustained Release Dexamethasone 0.4 mg Insert(s) for the Treatment of Pain, Inflammation, and Cystoid Macular Edema Following 27 Gauge Vitrectomy With Internal Limiting Membrane Peel for the Treatment of Retinal Edema Associated With Macular Pucker.

Inclusion Criteria: A patient's study eye must meet the following criteria to be eligible for inclusion in the study: * Symptomatic macular pucker with retinal edema * Age 18 years and older * Scheduled vitrectomy and internal limiting membrane peel * Willing and able to comply with clinic visits and study related procedures * Willing and able to sign the informed consent form Exclusion Criteria: A patient who meets any of the following criteria will be excluded from the study: * Patients under the age of 18 * Pregnancy ( must be ruled out in women of child-bearing age with pregnancy test) * Active infectious systemic disease * Active infectious ocular or extraocular disease * Obstructed nasolacrimal duct in the study eye (s) * Hypersensitivity to dexamethasone or prednisolone eye drops * Patients being treated with immunomodulating agents in the study eye(s) * Patient being treated with immunosuppressants and/or oral steroids * Patients with severe disease that warrants critical attention, deemed unsafe for the study by the investigator