전층 각막이식술 후 잔여 고도난시에 대해 각막윤부 이완절개 및 추가 봉합술의 단기 교정효과

• 영문명: The Short-Term Effect of Limbal Relaxing Incision and Compression Suture on Post-Penetrating Keratoplasty Astigmatism
• 발행기관: 대한안과학회
• 저자명: 송현범 최혁진 김미금 위원량,Hyun Beom Song, MD,, Hyuk Jin Choi, MD,, Mee Kum Kim, MD, PhD,, Wong Ryang Wee, MD,
• 간행물 정보: 『대한안과학회지』Ophthalmological Society,volume52,number10, 1142~1149쪽, 전체 8쪽
• 주제분류: 의약학 > 기타의약학
• 파일형태: PDF
• 발행일자: 2011.10.15

영문 초록

Purpose: To investigate the short-term effect of limbal relaxing incisions accompanied by compression sutures on postoperative astigmatism in penetrating keratoplasty. Methods: The medical records of patients who underwent penetrating keratoplasty, were followed-up for at least 18 months and had residual astigmatism greater than 4.0 diopters (D), were retrospectively analyzed. The patients had paired limbal relaxing incisions on the steep axis and compression sutures on the flat axis. The paired limbal relaxing incision was done for 2 clock hours each with a depth of 85% of the corneal thickness, and the compression sutures with an average of 3.2 bites were added with a Troutman operating keratometer guide. The visual acuities, corneal astigmatism and complications were evaluated at 1 month and 6 months. Results: At 1 month after the surgery, the best corrected visual acuities (log MAR) improved from 0.840 to 0.674 (p = 0.037) except for 1 patient with immediate postoperative rejection and another patient with a pre-existing cataract. The mean corneal astigmatism was reduced from 9.118 ± 3.158 D to 4.982 ± 3.063 D (p = 0.021). At 6 months after the surgery, the mean corneal astigmatism increased to 5.489 ± 2.670 D (p = 0.008), and the effect of surgery became statistically insignificant (p = 0.477). Conclusions: Paired limbal relaxing incisions and compression sutures were effective short-term on reducing residual corneal astigmatism and improving visual acuities in keratoplasty patients with high astigmatism, but became less effective on corneal astigmatism at 6 months. J Korean Ophthalmol Soc 2011;52(10):1142-1149

키워드

Astigmatism, Compression suture, Limbal relaxing incision, Penetrating keratoplasty