title: Subthreshold Micropulse Laser (577 nm) Treatment in Chronic Central Serous Chorioretinopathy.
abstract: OBJECTIVE
  To assess treatment with a 577-nm subthreshold micropulse laser (SML) in patients with chronic central serous chorioretinopathy (cCSC).
  
  
  METHODS
  This retrospective study included 38 patients treated with a 577-nm SML (Supra Scan; Quantel Medical) for cCSC. We included a subgroup of 18 patients with persistent subretinal fluid (SRF) after photodynamic therapy (PDT). Assessment included visual acuity (VA), central retinal thickness (CRT) and resolution of SRF.
  
  
  RESULTS
  At the last follow-up (mean 5 months), 74% of patients responded to therapy. The CRT decreased after treatment (mean CRT -115 µm, p < 0.001) and VA improved (mean logMAR -0.06, p = 0.039). No laser burns were detected with any imaging modality. In the subgroup of patients resistant to PDT, 61% of patients responded to therapy with a decrease in CRT (mean CRT -75 µm, p = 0.019).
  
  
  CONCLUSIONS
  The 577-nm SML is an effective treatment for cCSC even in patients without sufficient improvement after PDT.
authors.affiliation: Department of Ophthalmology, University Hospital of Cologne, Cologne, Germany.
authors.forename: Paula
authors.initials: P
authors.lastname: Scholz
authors.forename: Lebriz
authors.initials: L
authors.lastname: Ersoy
authors.forename: Camiel J F
authors.initials: CJ
authors.lastname: Boon
authors.forename: Sascha
authors.initials: S
authors.lastname: Fauser
mesh_terms: D000328:Adult; D000368:Aged; D056833:Central Serous Chorioretinopathy / Q000175:diagnosis / Q000188:drug therapy / Q000601:surgery*; D005260:Female; D005451:Fluorescein Angiography; D006801:Humans; D017075:Laser Coagulation / Q000379:methods*; D008297:Male; D008875:Middle Aged; D010778:Photochemotherapy; D012160:Retina / Q000473:pathology; D012189:Retrospective Studies; D058471:Subretinal Fluid; D041623:Tomography, Optical Coherence; D014792:Visual Acuity / Q000502:physiology