title: Initial visual acuity is an important prognostic factor in patients with branch retinal vein occlusion.
abstract: OBJECTIVE
  To evaluate the role of initial visual acuity (VA) as a potential prognostic factor for final VA in patients with branch retinal vein occlusion (BRVO).
  
  
  METHODS
  A retrospective data analysis involving 163 patients with macular edema secondary to BRVO treated according to the recommendations of the Branch Vein Occlusion Study Group was performed using univariate and multivariate logistic regression models, and receiver-operating characteristics analysis. The analyses take factors into account that can potentially influence final visual result: sex, age, type of occlusion (major temporal or macular), grid photocoagulation and ischemia.
  
  
  RESULTS
  The final VA ≤ 0.1 was statistically significantly related to initial VA ≤ 0.16 and age > 70 years. Sex, type of occlusion, grid photocoagulation and ischemia did not significantly influence the prediction of final VA based on age and initial VA.
  
  
  CONCLUSIONS
  The analysis shows that initial VA and age > 70 years significantly influence the prognosis for final visual results in patients with BRVO.
authors.affiliation: Department of Ophthalmology, University Hospital, Palacky University, Olomouc, Czech Republic. jiri.rehak@ocniklinikaol.cz
authors.forename: Jiri
authors.initials: J
authors.lastname: Rehak
authors.forename: Ladislav
authors.initials: L
authors.lastname: Dusek
authors.forename: Oldrich
authors.initials: O
authors.lastname: Chrapek
authors.forename: Evzen
authors.initials: E
authors.lastname: Fric
authors.forename: Matus
authors.initials: M
authors.lastname: Rehak
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D008269:Macular Edema / Q000175:diagnosis / Q000209:etiology; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D012372:ROC Curve; D012170:Retinal Vein Occlusion / Q000150:complications / Q000175:diagnosis*; D012189:Retrospective Studies; D012307:Risk Factors; D014792:Visual Acuity / Q000502:physiology*