20게이지와 23게이지 평면부 유리체절제술 후 각막지형도 변화의 비교

• 영문명: Comparisons of Corneal Topographic Change Between 20-Gauge and 23-Gauge Pars Plana Vitrectomy
• 발행기관: 대한안과학회
• 저자명: 박영민 이지은 엄부섭,Young Min Park, MD, Ji Eun Lee, MD, Boo Sup Oum, MD
• 간행물 정보: 『대한안과학회지』Ophthalmological Society,volume50,number3, 353~358쪽, 전체 6쪽
• 주제분류: 인문학 > 역사학
• 파일형태: PDF
• 발행일자: 2009.03.15

영문 초록

Purpose: To compare the changes in corneal topography between 23 gauge (G) pars plana vitrectomy (PPV) and 20 G PPV. Methods: Forty-three eyes of 42 patients who underwent PPV were divided into 2 groups: 20G PPV (Group I, n=18) and 23 G PPV (Group II, n=25). Both groups were followed up over 3 months postoperatively. ORBSCAN II was performed to compare the corneal topographic change of 20 G PPV and 23 G PPV. Results: In a 5 mm zone, significant postoperative change in the mean corneal surface cylinder was found between the 1st day and the 1st month in Group I, while no significant change was found in Group II. Postoperatively, the increase in the mean corneal surface cylinder in Group I was significantly higher than in Group II between the 1st day and the 1st month. Clinically significant astigmatism, induced by surgery, was found only in Group I one week after the operation. In a 3 mm zone, there was no significant change in the mean corneal surface cylinder in both groups postoperatively. The difference in the mean corneal surface cylinder between the 2 groups at the postoperative periods showed no significant change. Surgically induced astigmatism was significantly higher in Group I than in Group II between the 1st day and the 1st month postoperatively. Conclusions: PPV with the 23 G system is a sutureless transconjunctival surgery, which appears to be more effective due to insignificant corneal surface and astigmatic changes in the early postoperative period.

키워드

Corneal topography, Vector analysis, 23 G Vitrectomy