Comparative study of the incidence of macula edema in healthy and diabetic patients after uncomplicated cataract surgery

Abstract

Purpose To report the incidence of macula edema and its correlation with CDE(Cumulative Dissipated Energy) data in healthy and diabetic patients after cataract surgery. Methods 168 patients (105 healthy and 63 diabetic) underwent phacoemulsification and IOL implantation. Preoperatively medical history, biometric parameters were recorded and fundus photographs were taken. Phaco metrics were recorded after each surgery. Postoperatively fundus fluorescein angiography was performed between the 2nd and 6th month follow up. Patients with indications of macula thickness changes were evaluated with optical coherence tomography. Results a) Macular edema was recorded in 7 out of 63 diabetic patients (11,1%) and in 5 out of 105 healthy patient( 4,8%). This difference is not significant statistically (p=0,122>0,05). b) There was a significant correlation between CDE values and the occurrence of CME in both groups (p=0,0001665 <0,05.) c) Values of CDE>36,32 are predictors for CME (p= 0,006<0,050). Conclusion a) Improved surgical techniques have decreased the incidence of postoperative macula edema. b) There was no statistically significant difference in the incidence of CME between the 2 study groups. c) CDE (Cumulative Dissipated Energy) value is an important factor that indicates the phacoemulsification energy and time needed.