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국내 각막굴절교정학용 렌즈의 처방 현황에 대한 첫 설문조사 보고
박신혜,나경선,권형구,이현수,주천기,Shin Hae Park,Kyoung Sun Na,Hyoung Gu Kwon,Hyun Soo Lee,Choun-Ki Joo 대한안과학회 2009 대한안과학회지 Vol.50 No.4
Purpose: To investigate the current trends in the prescription of orthokeratologic lenses in Korea. Methods: We sent out an online survey to the members of the Korean ophthalmological Society in December 2007 and March 2008. We received responses from 139 ophthalmologists and analyzed the results of each question. Results: Easy fitting (34.5%) was selected as a major factor in the selection of orthokeratologic lenses. Children between the ages of 10 and 15 years with myopia less than 5 diopter, astigmatism less than 1.5 diopter, and 42 to 45-diopter keratometric value were preferred by most respondents. Decentration (n=74, 59%), corneal erosion (n=35, 25.2%), undercorrection (n=18, 12.9%), and allergy (n=11, 7.9%) were the most frequently encountered problems. 54.7% (n=76) of respondents needed to be fitted twice for trial lenses. The time required for the lens prescription in one patient was more than 30 minutes in 83.5% (n=116) of respondents. 59.7% of the respondents agreed that the lenses had an inhibitory potential on myopic progression, and 81.3% of the respondents said that orthokeratology could substitute for refractive surgery. Conclusions: There is a possibility of future growth in the use of orthokeratology. It is necessary to provide guidelines and teaching programs for the safe and effective fitting of orthokeratologic lenses. J Korean Ophthalmol Soc 2009;50(4):505-509
박신혜,김진형,주천기,Shin Hae Park,M,D,Jin Hyoung Kim,M,D,Choun Ki Joo,M,D 대한안과학회 2005 대한안과학회지 Vol.46 No.1
Purpose: To evaluate the preoperative donor conditions and surgical outcomes of the penetrating keratoplasty with imported donor corneas. Methods: We reviewed the medical records of 34 eyes of 34 patients who had undergone penetrating keratoplasty with imported donor cornea between February 2002 and June 2003 in Kangnam St. Mary’s Hospital, Seoul. Results: Mean donor age was 49.68 years and preoperative mean endothelial cell density of imported donor corneas was 2,830 cells/mm2, and was above 2,500 cells/mm2 in 30 eyes (88.24%). Average death to preservation time was 8.8 hours and death to surgery time was 5.2 days. All cases were compatible with surgical success without complications related to donor cornea at 2 months after keratoplasty. Five eyes showed irreversible corneal opacity. 4 of which resulted from graft rejection. Postoperative best corrected visual acuity, endothelial cell loss rate, survival rate were satisfactory. Conclusions: Penetrating keratoplasty with imported donor corneas can be a safe and effective treatment for Koreans who have been waiting for penetrating keratoplasty for a long time.
얼렌증후군 환자들에서의 색조렌즈를 통한 난독 개선 효과
박신혜,김승현,조윤애,주천기,Shin Hae Park,Seung-Hyun Kim,Yoonae A Cho,Choun-Ki Joo 대한안과학회 2012 대한안과학회지 Vol.53 No.3
Purpose: To evaluate the benefit of colored filters in Meares-Irlen Syndrome patients with reading difficulties. Methods: Twenty-five patients were selected through a brief questionnaire aimed to determine symptoms of eyestrain or visual distortion after thorough eye examinations. The cutoff value of the questionnaire was 2.13. The rates of Korean reading and writing were measured using the RWSM (Reading Writing Speed Meter) test with and without the use of colored filters. Two months after wearing the individually prescribed colored filters, a questionnaire on the patient’s subjective satisfaction with the colored filters were completed and evaluated. Results: The blue (n = 8, 32%) and gray (n = 4, 16%) colors were the most frequently selected filters. The mean score of the questionnaire on reading difficulties was 2.72. The mean reading rate improved from 82.72 wpm (words per minute) to 101.84 wpm with the colored filters, a statistically significant change (p = 0.019). The mean writing rate did not improve. The overall satisfaction score with the colored lenses was 3.6, with the highest score given to ease of reading (4.08) and the lowest to writing (2.92). Conclusions: In cases of reading difficulty, colored filters were effective for alleviating visual symptoms and improving reading speed. It is important to achieve an adequate understanding of the specific symptoms of Meares-Irlen Syndrome and to perform a thorough eye examination to differentiate this from other ocular disorders. J Korean Ophthalmol Soc 2012;53(3):452-459
박신혜(Park, Shin-hyae),이윤(Lee, Yoon) 한국영어교과교육학회 2014 영어교과교육 Vol.13 No.1
The purpose of this study is to investigate the effectiveness of differentiated spelling instruction in the elementary school classroom. To this end, 121 5th graders in Gyung-gi Province were selected. Students were divided into experimental and control group, and both groups were further divided into three sub-groups according to their spelling level. The experimental group was taught using differentiated spelling instruction that focused on spelling pattern, while the control group was taught using only ordinary writing instruction. After experiment, students were given tests focused on spelling knowledge and students spelling was analyzed in relation to the aspect of spelling development. The conclusions drawn are as follows. First, the experimental group showed significant improvement in the spelling knowledge compared to the control group. Second, the three differentiated levels in experimental group showed great achievement of spelling patterns and in word meanings. The students in the lower level experimental group particularly showed the greatest improvements than other two upper groups in word writing tasks. Third, the experimental group as a whole showed greater progress in spelling development. This result confirms the effect of differentiated spelling instruction on progressing students’ spelling development. Based on the results, suggestions for better spelling instruction were provided.
리눅스 보안 모듈 기반의 확장된 역할 기반 접근 제어 보안 시스템 설계
박신혜(Sihn-hye Park),예홍진(Hong-jin Yeh),김동규(Dong-Kyoo Kim) 한국정보과학회 2003 한국정보과학회 학술발표논문집 Vol.30 No.2Ⅰ
오늘날의 규모가 매우 크고 복잡한 시스템 및 네트워크 환경 하에서 컴퓨터 시스템의 보안 관리는 매우 중요하다. 역할기반 접근 제어 (RBAC: Role-Based Access Control)는 시스템 상의 역할을 기반으로 하는 접근 제어 메커니즘으로 복잡한 접근 정책을 기술하고, 시스템 관리상의 에러와 비용을 줄일 수 있다. 본 논문은 리눅스 커널에 보안 강화를 지원하는 리눅스 보안 모듈(LSM: Liunx Security Module) 프레임워크 상에서 확장된 역할 기반 접근 제어 보안 시스템(LSM-Based Extended RBAC Security Module)을 제안한다. 본 고에서 제안된 시스템은 보안의 강화를 위하여 원 타임 패스워드(One-Time Password)의 강화된 인증 방식과 부분적 다중 계층 보안 (Partial Multi-Level Security), 임의적 접근 제어(Discretionary Access Control)및 감사 정보를 통한 보안 정책 오류 검사 및 대응 (Security Policy Validation and Response) 기능을 지원한다.