title: [Quantification of metamorphopsia in the course of branch retinal vein occlusion with M-CHARTS].
abstract: OBJECTIVE
  To evaluate visual function disorder in patients with branch retinal vein occlusion by quantifying the degree of metamorphopsia.
  
  
  METHODS
  prospective interventional case series.
  
  
  METHODS
  The subjects were 12 patients(12 eyes) whose fovea was involved with branch retinal vein occlusion within a month after noticing their symptoms. The best-corrected visual acuity, and vertical and horizontal metamorphopsia scores were obtained within one month, and at 3 months and 6 months after the onset of symptoms regardless of therapy. The metamorphopsia scores were measured with M-CHARTS.
  
  
  RESULTS
  Although the average best-corrected visual acuity at 6 months was significantly better than that within a month of noticing symptoms, the average metamorphopsia scores did not improve after 6 months, and were not related to the average best-corrected visual acuity in either vertical or horizontal lines.
  
  
  CONCLUSIONS
  The degree of metamorphopsia measured with M-CHARTS is an important parameter in addition to the best-corrected visual acuity for evaluating visual function in patients with branch retinal vein occlusion.
authors.affiliation: Department of Ophthalmology, Osaka University Medical School, Japan. a193007@ych.or.jp
authors.forename: Tomoya
authors.initials: T
authors.lastname: Nakagawa
authors.forename: Seiyo
authors.initials: S
authors.lastname: Harino
authors.forename: Yoshiko
authors.initials: Y
authors.lastname: Iwahashi
mesh_terms: D000328:Adult; D000368:Aged; D003941:Diagnostic Techniques, Ophthalmological; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D012170:Retinal Vein Occlusion / Q000175:diagnosis* / Q000503:physiopathology*; D013997:Time Factors; D014785:Vision, Ocular; D014792:Visual Acuity