title: Long-term results of lens-sparing vitrectomy for stages 4B and 5 retinopathy of prematurity.
abstract: OBJECTIVE
  To assess long-term anatomic and visual outcomes and associated complications of lens-sparing vitrectomy (LSV) for treatment of tractional retinal detachments (TRDs) associated with stages 4B and 5 retinopathy of prematurity (ROP).
  
  
  METHODS
  We performed a retrospective review of medical records and data analyses of consecutive patients who presented with stages 4B and 5 ROP and underwent LSV from 1999 to 2007. Retinal reattachment status, visual acuity and postoperative complications were evaluated.
  
  
  RESULTS
  Twenty-one eyes of 20 patients, including 13 eyes with stage 4B ROP and 8 eyes with stage 5 ROP, were examined. The mean follow-up period was 5.6 years. In 9 (43%) out of 21 eyes, retinas were eventually reattached. The anatomic success rates were 62% in stage 4B and 13% in stage 5 ROP. In eyes with reattached retinas, visual acuity better than form vision was shown in 7 eyes (78%), whereas no light perception was present in 10 eyes (83%) among eyes with TRD on final examination. Postoperative intraocular hemorrhage occurred in nine eyes (43%). Long-term complications of cataract, corneal opacity, glaucoma and strabismus developed in 4 (19%), 6 (29%), 7 (33%) and 8 (38%) eyes, respectively, and were more common in eyes with TRD.
  
  
  CONCLUSIONS
  After following-up for a mean of 5.6 years, the anatomical success rate of LSV was encouraging for the correction of TRD associated with stage 4B ROP but not for stage 5 ROP. Retinal reattachment is important for obtaining better visual outcomes and preventing the development of late complications.
authors: Department of Ophthalmology, Inje University Sanggye Paik Hospital, Seoul, Korea.
authors: Jin
authors: J
authors: Choi
authors: Jeong Hun
authors: JH
authors: Kim
authors: Seong-Joon
authors: SJ
authors: Kim
authors: Young Suk
authors: YS
authors: Yu
mesh_terms: D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007231:Infant, Newborn; D019102:Infant, Very Low Birth Weight; D007908:Lens, Crystalline / Q000601:surgery*; D008297:Male; D012178:Retinopathy of Prematurity / Q000175:diagnosis / Q000503:physiopathology / Q000601:surgery*; D012189:Retrospective Studies; D012720:Severity of Illness Index; D013997:Time Factors; D016896:Treatment Outcome; D014792:Visual Acuity; D014821:Vitrectomy / Q000379:methods*