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A case of persistent hypotony following 23-gauge vitrectomy
Shinsuke Ataka1, Makoto Yamaguchi, Takeya Kohno
1Department of Ophthalmology and Visual Sciences, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan. m4052823@msic.med.osaka-cu.ac.jp
International Ophthalmology
|February 22, 2012
Summary
Persistent hypotony after 23-gauge vitrectomy may stem from ciliary detachment. Ultrasound biomicroscopy, aided by viscoelastic agents, identified this detachment, revealing a potential complication of the 23-gauge system.
Area of Science:
- Ophthalmology
- Surgical Complications
- Retinal Surgery
Background:
- Persistent hypotony is a rare complication following vitrectomy.
- Proliferative diabetic retinopathy requires complex surgical intervention, such as 23-gauge vitrectomy.
- Understanding the causes of hypotony is crucial for improving surgical outcomes.
Observation:
- A case of persistent hypotony after 23-gauge vitrectomy for proliferative diabetic retinopathy was investigated.
- Ultrasound biomicroscopy (UBM) was employed after anterior chamber injection of a viscoelastic substance.
Findings:
- UBM identified ciliary detachment, approximately 8 degrees, which was not visible on gonioscopy.
- The detachment was linked to the scleral wound preparation site for the 23-gauge system.
- Findings suggested posterior traction split the anterior chamber and choroid, with no continuity.
Implications:
- This highlights a potential, often undetected, cause of hypotony following minimally invasive vitrectomy.
- Viscoelastic-enhanced UBM is crucial for diagnosing ciliary detachment in shallow anterior chambers.
- Careful attention to instrument insertion technique may mitigate the risk of ciliary detachment.
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