title: Visual function and serous retinal detachment in patients with branch retinal vein occlusion and macular edema: a case series.
abstract: BACKGROUND
  The influence of serous retinal detachment (SRD) on retinal sensitivity in patients with branch retinal vein occlusion (BRVO) and macular edema remains unclear. This is despite the frequent co-existence of SRD and cystoid macular edema (CME) in BRVO patients on optical coherence tomography (OCT) and the fact that CME is the most common form of macular edema secondary to BRVO. We investigated visual function (visual acuity and macular sensitivity), macular thickness, and macular volume in patients with BRVO and macular edema.
  
  
  METHODS
  Fifty-three consecutive BRVO patients (26 women and 27 men) were divided into two groups based on optical coherence tomography findings. Macular function was documented by microperimetry, while macular thickness and volume were measured by OCT.
  
  
  RESULTS
  There were 15 patients with SRD and 38 patients with CME. Fourteen of the 15 patients with SRD also had CME. Visual acuity was significantly worse in the SRD group than in the CME group (P = 0.049). Also, macular thickness and macular volume within the central 4°, 10°, and 20° fields were significantly greater in the SRD group (P = 0.008, and P = 0.007, P < 0.001 and P < 0.001, and P < 0.001 and P < 0.001, respectively). However, macular sensitivity within the central 4°, 10°, and 20° fields was not significantly worse in the SRD group than in the CME group.
  
  
  CONCLUSIONS
  SRD itself may decrease visual acuity together with CME, because nearly all SRD patients also had CME. SRD does not seem to influence macular function on microperimetry.
authors.affiliation: Department of Ophthalmology, Yachiyo Medical Center, Tokyo Women's Medical University, Chiba, Japan. nomahide@tymc.twmu.ac.jp
authors.forename: Hidetaka
authors.initials: H
authors.lastname: Noma
authors.forename: Hideharu
authors.initials: H
authors.lastname: Funatsu
authors.forename: Tatsuya
authors.initials: T
authors.lastname: Mimura
authors.forename: Katsunori
authors.initials: K
authors.lastname: Shimada
mesh_terms: D000368:Aged; D003937:Diagnosis, Differential; D005260:Female; D005451:Fluorescein Angiography; D005500:Follow-Up Studies; D006801:Humans; D008269:Macular Edema / Q000150:complications* / Q000175:diagnosis / Q000503:physiopathology; D008297:Male; D011446:Prospective Studies; D012160:Retina / Q000473:pathology*; D012163:Retinal Detachment / Q000150:complications* / Q000175:diagnosis / Q000503:physiopathology; D012170:Retinal Vein Occlusion / Q000150:complications* / Q000175:diagnosis / Q000503:physiopathology; D012189:Retrospective Studies; D041623:Tomography, Optical Coherence; D014792:Visual Acuity