Laser photocoagulation for persistent central serous retinopathy - Results of long-term follow-up

Purpose: The authors evaluated the effect of laser photocoagulation for persistent central serous retinopathy (CSR). Methods: The authors evaluated 45 eyes of 38 patients who had been offered laser photocoagulation for CSR that did not resolve after 4 months of observation. Sixteen eyes of 14 patients who did not accept laser photocoagulation were followed as the control group. The remaining 29 eyes of 24 patients comprised the study group. Argon green laser photocoagulation was performed on 9 eyes, dye-yellow laser photocoagulation was performed on 12 eyes, and dye-orange laser photocoagulation was performed on 8 eyes. Mean follow-up was 4.8 years (range, 1-7 years). Results: In the group that received laser treatment, duration of the serous detachment was shorter (P < 0.0001) and final best-corrected visual acuity (BCVA) was better (P = 0.006) than those of the control group. Although none of the eyes in the laser photocoagulation group had a recurrence, seven eyes in the control group had one or more recurrences during the mean follow-up period of 4.8 years (P = 0.0003). Although the duration of the serous detachment was shorter in the dye-yellow laser photocoagulation subgroup than in the argon green laser treatment subgroup (P = 0.01), there were no other differences between the laser photocoagulation subgroups with respect to the duration of the serous detachments or the final BCVA. Conclusion: Direct laser photocoagulation of the leakage site(s) for CSR that persists for 4 months is safe and effective to shorten the duration of the serous detachment, to improve final BCVA, and to decrease the incidence of recurrence.