title: Vitrectomy for diabetic cystoid macular edema.
abstract: OBJECTIVE
  We evaluated visual outcomes following vitrectomy for diabetic cystoid macular edema.
  
  
  METHODS
  Visual outcomes and factors possibly influencing final visual acuity were assessed and documented retrospectively in 45 eyes of 40 patients, all of whom were followed up for at least 6 months postoperatively.
  
  
  RESULTS
  Compared with the preoperative logarithm of the minimum angle of resolution (logMAR) visual acuity, final logMAR visual acuity improved 0.2 or more in 51% of the eyes, was unchanged in 47%, and decreased 0.2 or more in 2%. A final postoperative visual acuity of 0.5 or better was achieved in 38%. Preoperative visual acuity and the extent of the cystoid space on fluorescein angiography were significantly related to final visual acuity. A final postoperative visual acuity of 0.5 or better was noted in 8% of eyes with a preoperative visual acuity below 0.1, in 50% of eyes with a preoperative visual acuity of 0.1 or better, in 71% of eyes with a cystoid space smaller than 5 disc areas, and in 20% of eyes with a cystoid space of 5 disc areas or more. The state of the posterior vitreous membrane did not influence final visual acuity. There were no complications that decreased visual acuity.
  
  
  CONCLUSIONS
  We conclude that diabetic cystoid macular edema is a good indication for vitrectomy, regardless of the state of the posterior vitreous membrane. A preoperative visual acuity of 0.1 or better and/or a cystoid space smaller than 5 disc areas may be indications for surgery aimed at achieving a final postoperative visual acuity of 0.5 or better.
authors.affiliation: Department of Ophthalmology, Nihon University School of Medicine, Tokyo, Japan.
authors.forename: Yukihiro
authors.initials: Y
authors.lastname: Sato
authors.forename: Zeon
authors.initials: Z
authors.lastname: Lee
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Shimada
mesh_terms: D000328:Adult; D000368:Aged; D003930:Diabetic Retinopathy / Q000601:surgery*; D005260:Female; D005451:Fluorescein Angiography; D005500:Follow-Up Studies; D006801:Humans; D007431:Intraoperative Complications; D008269:Macular Edema / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications; D016896:Treatment Outcome; D014792:Visual Acuity; D014821:Vitrectomy