| Long-term Changes of Endothelial Cell Density after Pars Plana Vitrectomy with Fragmentation. |
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Soo Youn Choi, Ji Yun Han, Youngsub Eom, Seong Woo Kim |
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Department of Ophthalmology, Korea University College of Medicine, Seoul, Korea. vitreokim@gmail.com |
| 유리체절제술 시 평면부 초음파분쇄술 후 각막내피세포의 장기 변화 |
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최수연⋅한지윤⋅엄영섭⋅김성우 |
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고려대학교 의과대학 안과학교실 |
Correspondence:
Seong-Woo Kim, MD, PhD
Email: vitreokim@gmail.com |
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Received: 15 December 2016 • Revised: 14 February 2017 • Accepted: 31 March 2017 |
| Abstract |
PURPOSE
To evaluate the long-term changes in cornea endothelial cell density (ECD) after pars plana vitrectomy (PPV) with fragmentation. METHODS: Twenty patients (20 eyes) who underwent PPV with fragmentation and who were followed up for 2 years were enrolled in this retrospective study. The cornea ECD, coefficient of variation (CV), and hexagonality (HA) were calculated using a specular microscopy at 1, 3, 6, 12 months, and 2 years after surgery. RESULTS: The preoperative mean ECD was 1,782 ± 623 cells/mm², and the postoperative mean ECD did not significantly change at 1, 3, 6, and 12 months. Additionally, there were no significant changes in CV or HA. At 2 years after surgery, the mean ECD was 1,722 ± 532 cells/mm², the mean CV was 35.50 ± 3.03%, and the mean HA was 53.00 ± 4.91%. There were no significant changes in ECD, CV, or HA preoperatively and postoperatively at 1, 3, 6, and 12 months. CONCLUSIONS: In this study, the mean ECD did not significantly decrease after PPV with fragmentation at 2 years after surgery. A PPV with fragmentation was an appropriate surgical procedure for patients with low cornea endothelial cell density. |
| Key Words:
Cornea endothelial cell density;Pars plana vitrectomy with fragmentation |
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