Factors predicting response of pseudophakic cystoid macular edema to topical steroids and nepafenac.

Purpose: The purpose of this study is to determine factors predicting resolution of acute pseudophakic cystoid macular edema (PCME) after 6 weeks of topical prednisolone and nepafenac application. Methods: Case records of patients with a clinical and optical coherence tomography (OCT)-based diagnosis of acute PCME were retrospectively reviewed for best-corrected visual acuity and OCT-based parameters at the time of presentation with PCME. In addition, demographic variables, intraoperative and early postoperative factors, and type of treatment prescribed (tapering vs. nontapering prednisolone, generic vs. branded prednisolone and nepafenac) were recorded from case records for analysis. Complete and any successes were defined and baseline factors predicting complete success at 6 weeks were analyzed. Results: We analyzed 69 eyes of 69 patients out of which complete success with topical medications was seen in 37 eyes (54%) and any success was seen in 55 eyes (80%) at 6 weeks. Multivariable logistic regression showed that eyes with lower vision at presentation had a significantly lower likelihood of experiencing both, complete (odds ratio [OR] = 0.83 with one-line decrement in baseline vision, 95% confidence interval [CI] = 0.61-0.89, P = 0.003) and any success (OR = 0.61, 95% CI = 0.4-0.9, P = 0.007). Baseline OCT thickness did not influence success rates. Conclusion: Topical prednisolone and nepafenac lead to resolution in PCME in half of the eyes at 6 weeks. Baseline vision is the only factor predicting rates of success and PCME resolution with topical medications.