title: Visual outcomes after 3-port lens-sparing vitrectomy in stage 4 retinopathy of prematurity.
abstract: OBJECTIVE
  To assess the visual acuity of eyes successfully treated with 3-port lens-sparing vitrectomy for stage 4 retinopathy of prematurity.
  
  
  METHODS
  Of 102 consecutive eyes achieving at least posterior pole reattachment, 30 eyes of 26 patients were tested by Teller or Allen acuity measurements and were subsequently converted to logarithm of the minimum angle of resolution (logMAR). Visual outcomes were also examined as either favorable or unfavorable (Snellen equivalent >20/200).
  
  
  RESULTS
  Seventy-two eyes were not tested because of either inability to perform testing (age or neurologic sequelae related to prematurity) or loss of follow-up. Of those tested, mean +/- SD logMAR visual acuity for the stage 4A and stage 4B groups was 0.51 +/- 0.09 (Snellen approximate 20/62) and 1.03 +/- 0.19 (Snellen approximate 20/200), respectively (odds ratio, 0.39; 95% confidence interval, 0.24-0.64; P = .001). Of those eyes assessed by Teller measurements, 10 of 10 stage 4A eyes and 3 (37.5%) of 8 stage 4B eyes had favorable outcomes; among eyes assessed with Allen measurements, 4 of 4 stage 4A eyes and 0 of 8 stage 4B eyes had favorable outcomes.
  
  
  CONCLUSIONS
  The majority of eyes were not tested. Among eyes tested after successful 3-port lens-sparing vitrectomy, some eyes treated prior to macular detachment may be associated with a more favorable outcome and improved maintenance of functional visual acuity.
authors: Section of Vitreoretinal Diseases and Surgery, Baylor College of Medicine, 6565 Fannin Street, Houston, TX 77030, USA.
authors: Rohit R
authors: RR
authors: Lakhanpal
authors: Regina L
authors: RL
authors: Sun
authors: Thomas A
authors: TA
authors: Albini
authors: Robert
authors: R
authors: Coffee
authors: David K
authors: DK
authors: Coats
authors: Eric R
authors: ER
authors: Holz