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Related Experiment Video

Updated: May 7, 2026

Implantation Protocol of the Foldable Capsular Vitreous Body for Complex Vitreoretinal Surgery
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Changes in anterior chamber depth following vitrectomy.

Yang Li1, Cheng-xun Yang, Guo-ping Qing

  • 1Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University; Beijing Ophthalmology & Visual Sciences Key Laboratory, Beijing 100730, China.

Chinese Medical Journal
|October 12, 2013
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Summary

Vitrectomy surgery does not alter anterior chamber depth (ACD) in eyes with vitreous hemorrhage (VH). However, idiopathic epiretinal membrane (ERM) can deepen ACD, with this effect resolving after vitrectomy.

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Area of Science:

  • Ophthalmology
  • Anterior Segment Surgery
  • Ocular Biometry

Background:

  • Anterior segment morphometry is vital for assessing surgical outcomes and managing anterior segment disorders.
  • Previous research suggests potential shifts in anterior chamber depth (ACD) post-vitrectomy.
  • This study investigates short-term ACD changes following vitrectomy using A-scan ultrasound.

Purpose of the Study:

  • To quantify short-term alterations in anterior chamber depth (ACD) after vitrectomy.
  • To compare ACD changes in eyes with vitreous hemorrhage (VH) versus idiopathic epiretinal membrane (ERM).

Main Methods:

  • A prospective case series included 29 eyes undergoing vitrectomy as the sole procedure.
  • Anterior chamber depth (ACD) was measured via A-scan ultrasound preoperatively and at 1 week, 1 month, and 3 months postoperatively.
  • Postoperative ACD measurements were compared to baseline values.

Main Results:

  • Eyes with vitreous hemorrhage (VH) showed no significant ACD change after vitrectomy.
  • Eyes with idiopathic epiretinal membrane (ERM) exhibited a statistically deeper ACD preoperatively compared to fellow eyes.
  • This ACD deepening in ERM eyes resolved by 1 month post-vitrectomy.

Conclusions:

  • Vitrectomy does not impact ACD in eyes with vitreous hemorrhage (VH).
  • Idiopathic epiretinal membrane (ERM) can cause ACD deepening, which is reversible after successful vitrectomy.
  • ACD measurements are essential for understanding visual outcomes in anterior segment procedures.