Five-Year Outcomes of Subthreshold Yellow Micropulse Laser Treatment in Chronic Central Serous Chorioretinopathy: Could it be Any Marker of Response to Treatment?

Abstract

Objective: The aim of the study was to assess the results of 577 nm subthreshold yellow micropulse laser treatment (SYMLT) in patients with chronic central serous chorioretinopathy (CSC) with a five-year follow-up. We also evaluated the effect of baseline characteristics on relapse and the SYMLT treatment responses. Methods: A total of 81 eyes of 72 patients with chronic CSC were followed for at least 5 years. Patients were treated with 577-nm SMYLT in multiple sessions at a 5% duty cycle. Best-corrected visual acuity (BCVA), central macular thickness (CMT), central macular volume (CMV), total macular volume (TMV) and subfoveal choroidal thickness (SFCT) were measured by spectral-domain optical coherence tomography (SD-OCT). Other basic SDOCT parameters were recorded. Results: The mean BCVA improved from 0.46±0.25 Log MAR to 0.11±0.22 Log MAR and the mean CMT decreased from 404.60±72.46 µm to 243.50±24.97 µm at last visit (p