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Conjunctival pigmentation after 23-gauge microincisional vitrectomy surgery
1Department of Ophthalmology, School of Medicine, Kyungpook National University, Chung-gu, Daegu, South Korea.
Eye (London, England)
|August 20, 2011
Summary
Conjunctival pigmentation can occur after 23-gauge microincisional vitrectomy surgery (MIVS). This condition, linked to C3F8 gas tamponade, involves melanin pigment prolapse through sclerotomy sites.
Area of Science:
- Ophthalmology
- Surgical Innovation
- Retinal Surgery
Background:
- Microincisional vitrectomy surgery (MIVS) is a common procedure.
- Sclerotomy sites are potential entry points for intraocular substances.
Observation:
- Conjunctival pigmentation was observed in 4.3% of eyes post-23-gauge MIVS.
- Histopathology revealed melanophages and melanin pigments at the affected sites.
Findings:
- C3F8 gas tamponade significantly increased the risk of conjunctival pigmentation (OR, 9.4).
- Pigmentation surface area was larger in eyes with C3F8 gas tamponade.
Implications:
- Intraocular melanin pigment can prolapse through sclerotomy sites after MIVS.
- Preoperative counseling is advised for patients undergoing 23-gauge MIVS, especially with gas tamponade.
