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이재림(Jae Lim Lee),김미금(Mee Kum Kim) 대한검안학회 2004 Annals of optometry and contact lens Vol.3 No.3
목적: 한국인 원추각막의 임상 양상에 따른 렌즈 치료 형태를 분석하고자 하였다. 대상과 방법: 원추각막 환자 중 렌즈 처방을 받고 1개월 이상 관찰된 53명 106안을 대상으로 각막 지형도 지표를 분석하고 실제 치료 형태를 후향적으로 조사하여 각 지표간 상관관계를 분석하였다. 렌즈 착용 후 시력, 각막미란, 착용시간, 눈부심, 통증, 착용 후 지형도 변화 등을 조사하였다. 결과: 구면 RGP장착은 19안, 비구면 RGP 6안, 다중곡률 RGP 81안으로 평균 기본만곡반경은 각각 7.67 mm, 7.17 mm, 6.76 mm 였다. sim K, 이측 3 mm 지점 K 와 렌즈의 기본만곡반경은 유의한 상관관계가 있었다. 77안에서 20/30 이상의 시력 개선이 있었고, 평균 착용시간은 11.6시간이었다. 눈부심은 4안, 통증 7안, 각막미란진행은 8안이었고, 착용이 어려웠던 눈의 평균 각막전면상승은 0.0745 mm, sim Kmax 는 59.35D 로 착용이 가능했던 눈의 0.0584 mm, 54.22D 보다 유의하게 높았다. 다중곡률RGP착용 눈의 원추각막의 유의한 진행은 관찰되지 않았다. 결론: 렌즈 착용형태를 분석함으로써 원추각막의 상태에 따른 렌즈 장착 지침을 설정할 수 있었다. Purpose: To analyze the fitting characteristics of contact lens, according to the clinical findings keratoconus of in Koreans. Methods: The topographic indices were evaluated in 106 keratoconic eyes of the 53 patients, who had been followed up for at least 1 month, and their fitting pattern parameters retrospectively analyzed. The visual acuity, epithelial erosion, glare, daily lens wearing time, pain and the changes in the topographic indices were evaluated after fitting. Results: The number of eyes fitted with spherical RGP, aspherical RGP and multicurve RGP were 19, 6 and 81 eyes with mean base curve radius (BCR) of 7.67, 7.17, and 6.76 mm, respectively. The Sim K and temporal K 3 mm from the center were significantly correlated with the BCR. 77 eyes achieved visual acuity of 20/30 or better, and the mean daily wearing time was 11.6 hours. Glare and pain were reported in 4 and 7 eyes, respectively, and progression eyes were 0.0745 mm and 59.35 D, which were significantly higher than 0.0584 mm and 54.22 D in lens tolerable eyes. No progressive keratoconic changes were observed in the topographic indices for the eyes fitted with the multicurve lenses. Conclusions: Appropriate fitting guide-lines could be established by analyzing the fitting and clinical characteristics in keratoconus.
TIME-SERIES PHOTOMETRY OF VARIABLE STARS IN THE GLOBULAR CLUSTER NGC 288
Dong-Joo Lee,구재림,홍경수,Seung-Lee Kim,Jae Woo Lee,CHUNG-UK LEE,Young-Beom Jeon,Yun-Hak Kim,Beomdu Lim,Yoon-Hyun Ryu,Sang-Mok Cha,Yongseok Lee,Dong-Jin Kim,Byeong-Gon Park,김천휘 한국천문학회 2016 Journal of The Korean Astronomical Society Vol.49 No.6
We present the results of $BV$ time-series photometry of the globular cluster NGC 288. Observations were carried out to search for variable stars using the Korea Microlensing Telescope Network (KMTNet) 1.6-m telescopes and a 4k pre-science CCD camera during a test observation from August to December, 2014. We found a new SX Phe star and confirmed twelve previously known variable stars in NGC 288. For the semi-regular variable star V1, we newly determined a period of 37.3 days from light curves spanning 137 days. The light-curve solution of the eclipsing binary V10 indicates that the system is probably a detached system. The pulsation properties of nine SX Phe stars were examined by applying multiple frequency analysis to their light curves. We derived a new Period-Luminosity ($P$-$L$) relation, $\left \langle M_{V} \right \rangle = -2.476(\pm0.300) \log P - 0.354(\pm0.385)$, from six SX Phe stars showing the fundamental mode. Additionally, the period ratios of three SX Phe stars that probably have a double-radial mode were investigated; $P_{\rm FO}$/$P_{\rm F}$ = 0.779 for V5, $P_{\rm TO}$/$P_{\rm FO}$ = 0.685 for V9, $P_{\rm SO}$/$P_{\rm FO}$ = 0.811 for V11. This paper is the first contribution in a series assessing the detections and properties of variable stars in six southern globular clusters with the KMTNet system.