Assessment of macular function by microperimetry in unilateral resolved central serous chorioretinopathy

Abstract

Purpose: To determine macular sensitivity and fixation characteristics in patients with unilateral resolved central serous chorioretinopathy (CSC) using fundus-related microperimetry. Methods: We reviewed 15 eyes with resolved CSC and 15 normal healthy eyes that had undergone fundus-related microperimetry. The macular sensitivity was measured using the recently introduced fundus-related microperimeter, MP-1. The best-corrected visual acuity (VA) (BCVA), mean retinal sensitivity in the central 10° (central microperimetry, cMP-1) and in the paracentral 10-20° (paracentral microperimetry, pMP-1), and fixation stability and location were determined and compared with measurements in control eyes. Results: BCVA at the time of this study was 20/20 in all the affected eyes, and fundus examination and optical coherence tomography findings revealed no serous detachment. Eyes with CSC showed statistically significantly lower cMP-1 sensitivity and lower, but not significantly, pMP-1 sensitivity than control eyes (P<0.001, P=0.11, respectively). Eyes with CSC were not significantly different from control eyes in fixation location (P=1.00) or fixation stability (P=0.91). Fixation location was predominantly central in all eyes with CSC; fixation was stable in 12 (80%) and relatively unstable in 3 (20%). Conclusion: Our study shows that eyes with resolved CSC can have lower retinal sensitivity in the central macula than control eyes, even after good VA has been obtained.