라식 수술 후 각막곡률계산법과 각막지형도에 의한 각막곡률의 상관성

• 영문명: Relationship between Clinical History Method and Orbscan Ⅱ for Measuring Corneal Power after LASIK
• 발행기관: 대한안과학회
• 저자명: 구희찬 조소현 김효진 김진형 주천기,Hee-Chan Ku, M.D., So-Hyun Cho, B.S., Hyo-Jin Kim, M.S., Jin-Hyung Kim, M.D., Choun-Ki Joo, M.D., PhD.
• 간행물 정보: 『대한안과학회지』Ophthalmological Society,volume46,number4, 581~588쪽, 전체 8쪽
• 주제분류: 의약학 > 기타의약학
• 파일형태: PDF
• 발행일자: 2005.04.30

영문 초록

Purpose: To evaluate the relation between clinical history method and Orbscan Ⅱ for corneal power measurement after laser in situ keratomileusis (LASIK). Methods: A total of 77 consecutive eyes of 43 patients who were treated with LASIK for myopia were followed up for at least 6 months. Corneal power by clinical history methods (CK) was compared with 3.0 mm zones of simulated keratometry (Sim-K), with 0.5, 1.0, 1.5, 2.0 and 3.0 mm zones of axial power maps (AP) and with 2.0, 3.0, 3.5, 4.0 and 5.0 mm zones of total optical power maps (TOP). Results: Sim-K and all AP-map zones using Orbscan II were significantly higher (P<.001) than the CK value, while all TOP-map zones were significantly lower (P<.001) than the CK value. Among them, 3.0 and 4.0 mm TOP-map zones showed the highest correlation with the corneal power by CK (r2=0.889, P<.001; r2=0.889, P<.001). The correlation was higher with 3.0 mm TOP-map zone (r2=0.800, P<.001) than with 4.0 mm TOP-map zone (r2=0.793, P<.001) in high myopia patients. Conclusions: Although 3.0 and 4.0 mm TOP-map zones of Orbscan II were correlated highly with the CK value, these correlations were relatively low in high myopia patients and 3.0 mm TOP-map zone was better correlated than 4.0 mm TOP-map zone in these patients.

키워드

Clinical history method, Corneal power measurement, Orbscan II