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무색 인공수정체렌즈안과 광변색 인공수정체안에서의 수술 전후 스트레이라이트의 비교
김인혁,황형빈,신승주,정성근,In Hyuk Kim,MD,Hyung Bin Hwang,MD,Seung Joo Shin,MD,Sung Kun Chung,MD,PhD 대한안과학회 2014 대한안과학회지 Vol.55 No.2
Purpose: To compare visual acuity and intraocular straylight after implantation of clear and photochromic intraocular lenses (IOLs) in a mesopic lighting condition. Methods: Clear IOLs were implanted in 95 eyes of 72 patients (clear IOL group), and photochromic IOLs were implanted in 22 eyes of 16 patients (photochromic IOL group). Best-corrected visual acuity (BCVA) was measured indoors before surgery and 1 month after surgery. Straylight values were measured indoors before surgery and 1 and 2 months after surgery using the C-quant straylight meter (Oculus GmbH, Wetzlar, Germany). Results: There were no significant differences between the 2 groups in BCVA at 1 month postoperatively (p = 0.587). Mean straylight values of clear and photochromic IOL groups were 2.76 ± 1.89 log (s) and 2.88 ± 2.04 log (s) preoperatively, 1.39 ± 0.84 log (s) and 1.32 ± 0.26 log (s) at 1 month postoperatively, and 1.43 ± 0.92 log (s) and 1.45 ± 0.50 log (s) at 2 months postoperatively. There were no significant differences between the 2 groups in indoor straylight values (p = 0.778, 0.709, 0.929, before surgery, 1 and 2 months after surgery respectively). Repeated-measure analysis of straylight values also showed no significant difference between the 2 groups (p > 0.05). Conclusions: There were no significant differences in BCVA and straylight values between clear and photochromic IOL groups under a mesopic light condition. Therefore, photochromic IOL could be suitable choice for cataract patients who spend significant time under mesopic conditions. J Korean Ophthalmol Soc 2014;55(2):190-195
다중이용업소 안전관리 개선을 위한 법적 소고 - 24시 무인점포의 화재안전 정책을 중심으로 -
김인혁(Kim, In-Hyuk),여은태(Yeo, Eun-Tae),조영진(Cho, Young-Jin) 한국비교공법학회 2021 공법학연구 Vol.22 No.4
2019년 말부터 시작된 코로나19 팬데믹 사태는 오늘에 이르기까지 다양한 영역에서 우리사회에 혼란과 변화를 가져오고 있다. 특히 감염병은 여러 사람이 이용하는 시설을 중심으로 확산되고 있다는 특징을 지니기에 이를 예방하기 위한 방안 중 하나로 ‘사회적 거리두기’가 범정부적으로 시행되고 있다. 이는 우리사회가 이른바 ‘언택트Untact) 사회’로 급속히 변화되는 계기가 되었으며, 비대면 상거래의 새로운 장을 열었다고도 평가된다. 한편 핀테크(FinTech)와 셀프 서비스 테크놀로지(Self-service technology)의 고도화와 확산에 발맞춰 새로운 소비환경에 따른 밀키트, 아이스크림 전문점, 카페, 편의점, 코인빨래방 등 다양한 종류의 24시간 무인점포들이 생활밀접업종으로서 급속히 증가하고 있다. 이들 업종은 오피스텔, 다세대주택 등 1인 가구가 밀집하고 있는 지역에서부터 아파트 단지에 이르기까지 다양한 형태의 주거환경 속에서 쉽게 찾아볼 수 있다. 그러나 불특정 다수가 이용 가능한 24시 무인점포 등은 화재와 같은 재난으로부터 안전한지 의문이 제기되며, 안전관리의 사각지대에 있지는 않은지 면밀한 검토가 필요하다. 현행 법령에서는 23개 업종만을 다중이용업소의 안전관리 대상으로 규정하고 있기에, 신종 다중이용업소의 등장에 과연 유연하고 실효성 있는 대응이 가능한가를 살펴볼 필요성이 있다. 특히 무인점포와 같은 신종 다중이용업소에 화재 등을 예방하기 위한 소방안전시설을 설치할 수 있는 법적 근거가 충분하지 못하기에, 만약 화재가 발생할 경우 인명피해와 물적피해가 우려된다는 문제점도 제기되고 있다. 불특정 다수인들이 24시간 이용하는 이러한 점포는 소비자의 접근성을 높이기 위해 대부분 저층에 위치하고 있으며, 점포 내에 상주인원이 없어 화재발생 시 가장 중요한 초기대응 그리고 빠른 신고를 기대하기 어려우며, 화재발생시 인근 주변에까지 연소가 확대될 가능성이 매우 높다. 이와 같은 문제의식을 바탕으로, 본고에서는 오늘날 급속하게 증가하고 있는 무인점포의 화재를 예방하기 위한 측면에서 현행 법령상 다중이용업의 법적 정의와 각 개별법상 유사 개념에 대하여 살펴보고자 한다. 더불어 24시 무인점포의 현황 분석을 통해 24시 무인점포의 안전관리상 문제점들등을 살펴보고 이를 개선하기 위한 법제도적 방안을 도출해보고자 한다. The COVID-19 pandemic, which started at the end of 2019, has brought chaos and changes to our society in various fields up to today. In particular, since infectious diseases are spreading mainly in facilities used by many people, “social distancing” is being implemented as one of the measures to prevent it. This became an opportunity for our society to rapidly change into a so-called ‘untact society’, and it is also evaluated that it opened a new chapter in non-face-to-face commerce. Meanwhile, in line with the advancement and spread of FinTech and self-service technology, various types of 24-hour unmanned stores such as meal kits, ice cream shops, cafes, convenience stores, and coin laundries are living in the new consumption environment. As a closely related industry, it is growing rapidly. These industries can be easily found in various types of residential environments, from areas where single-person households are concentrated, such as officetels and multi-family houses, to apartment complexes. However, it is questionable whether unmanned 24 hour stores, etc. that can be used by many unspecified people are safe from disasters such as fire, and it is necessary to carefully examine whether they are in the blind spot of safety management. As the current law stipulates that only 23 industries are subject to safety management of publicly-used establishments, it is necessary to examine whether a flexible and effective response to the emergence of new publicly-used establishments is possible. In particular, there is not enough legal basis to install fire safety facilities to prevent fires in new publicly-used establishments such as unmanned stores. Most of these stores, which are used by unspecified people 24 hours a day, are located on the lower floors to increase the accessibility of consumers. It is very likely to expand. Based on this awareness, in this paper, as a way to consider the problems of fire safety management in unmanned stores, which are rapidly increasing today, the legal definition of publicly-used establishments under the Publicly-Used Establishments Act and the current status and problems of 24-hour unmanned stores are analyzed. We will look into it and try to derive legal and institutional improvements.
빛간섭단층촬영에 따른 당뇨황반부종의 형태학적 분류와 치료 후 임상경과
임종훈,김인혁,배지현,김하경,배소현,Jong Hoon Lim,In Hyuk Kim,Gi Hyun Bae,Ha Kyoung Kim,So Hyun Bae 대한안과학회 2014 대한안과학회지 Vol.55 No.2
Purpose: To analyze the optical coherence tomographic patterns and clinical courses of patients with diabetic macular edema (DME) after treatment. Methods: The charts of 65 patients with DME were retrospectively reviewed. Baseline optical coherence tomographic patterns of DME were categorized into the 4 groups: group 1 (9 eyes, 13.8%) showed diffuse retinal thickening, group 2 (21 eyes, 32.3%) had cystoid macular edema (CME), group 3 (13 eyes, 20.0%) demonstrated serous retinal detachment (SRD) and group 4 (22 eyes, 33.9%) had combined CME and SRD. Treatments for DME included intravitreal bevacizumab/ triamcinolone injection, focal laser photocoagulation and vitrectomy. During 12 months of follow-up, changes in the patterns of DME were assessed. Additionally, the central retinal thickness (CRT) and best-corrected visual acuity (BCVA) were measured at baseline, 6 and 12 months. Results: During 12 months of follow-up, 21 eyes (32.3%) showed changes in the DME pattern: 2 eyes (22.2%) in group 1, 3 (14.3%) in group 2, 4 (30.8%) in group 3 and 12 (54.5%) in group 4. A significantly greater proportion of eyes with changes in DME pattern underwent vitrectomy compared with those without changes in DME pattern (p = 0.012). There was a significant difference in CRT among the 4 groups; group 4 demonstrated the largest CRT at baseline, 6 and 12 months (p < 0.001, 0.002 and 0.029, respectively). However, there were no significant differences in BCVA among the 4 groups at baseline, 6 or 12 months (p = 0.879, 0.375 and 0.246, respectively). Conclusions: Clinical courses varied according to the tomographic patterns of DME after treatment, and the poorest anatomic outcome was found in group 4. Change in tomographic pattern of DME was correlated with the treatment of DME, which might suggest a poorer outcome in those patients than in the patients who maintained their DME patterns. J Korean Ophthalmol Soc 2014;55(2):222-229
오정대(Jung-Dae Oh),김인혁(In-Hyuk Kim),이희현(Hee-Hyun Lee),우재혁(Jae-Hyuck Woo) 대한전자공학회 2020 대한전자공학회 학술대회 Vol.2020 No.8
In this paper, we propose an integrated signal processing semiconductor that can detect distance with high resolution in LiDAR system. The suggested method is to configure TDC, TIA, and MCU, which function specifically on a single chip. The proposed semiconductor has advantages of high-precision long-distance detection using TDC, acceptability in various photo detectors using TIA, cost savings as integrated into a single semiconductor, and lightening and miniaturizing the module. In addition, it supports error correction, data signal processing and various communication protocols using MCU, which is applicable to various LiDAR systems.