Surgical outcomes of 23- and 20-gauge vitrectomies for rhegmatogenous retinal detachment associated with posterior vitreous detachment

Ophthalmic Surg Lasers Imaging. 2011 Sep-Oct;42(5):376-82. doi: 10.3928/15428877-20110616-01. Epub 2011 Jun 23.


Background and objective: To compare the outcomes of 23- and 20-gauge vitrectomies 1 year after primary repair of rhegmatogenous retinal detachments (RRDs) associated with a posterior vitreous detachment (PVD).

Patients and methods: One hundred seventy-five consecutive eyes were reviewed that had undergone 23- or 20-gauge vitrectomy for RRDs associated with PVD.

Results: Retinal reattachment during the year after the first vitrectomy occurred in 88 (91%) of 97 eyes in the 23-gauge group and 70 (90%) of 78 eyes in the 20-gauge group. All eyes in both groups achieved anatomic success after another procedure. The surgical time in the 23-gauge group was significantly (P = .03) shorter than in the 20-gauge group. No significant difference was found between the preoperative and postoperative visual acuities in both groups.

Conclusion: Twenty-three-gauge vitrectomy can obtain anatomic and visual acuity results similar to those obtained with 20-gauge vitrectomy after primary repair of RRDs and may be a surgical option for treating the disorder.

MeSH terms

  • Adult
  • Aged
  • Aged, 80 and over
  • Conjunctiva / surgery
  • Female
  • Follow-Up Studies
  • Humans
  • Male
  • Middle Aged
  • Retinal Detachment / complications
  • Retinal Detachment / surgery
  • Retrospective Studies
  • Suture Techniques
  • Treatment Outcome
  • Visual Acuity
  • Vitrectomy / methods*
  • Vitreous Detachment / complications
  • Vitreous Detachment / surgery*