난시교정인공수정체 삽입술 후 오교정에 대한 분석

전혜민,이경헌,Hye Min Jeon,Kyung Heon Lee 대한안과학회 2014 대한안과학회지 Vol.55 No.11

Purpose: To evaluate the efficacy and stability of AcrySof Toric intraocular lens (IOL) implants and to analyze the miscorrection that resulted after implantation. Methods: This retrospective study included 422 eyes of 348 patients who underwent cataract surgery with implantation of the AcrySof toric IOL between December 2011 and June 2013. We evaluated uncorrected visual acuity (UCVA), best corrected visual acuity (BCVA), keratometry and refraction preoperatively and 3 months postoperatively. The axis of implanted AcrySof Toric IOL was measured using the KR-1W aberrometer before mydriasis. At 3 months postoperatively, patients with a residual cylindrical power of 0.50 diopters (D) or more, and having an IOL rotation of 10 degrees (°) or more were considered having miscorrection. Results: UCVA (log MAR) improved from 0.58 ± 0.35 to 0.18 ± 0.26. Preoperative corneal astigmatism was 1.46 ± 0.72 D and postoperative refractive cylindrical power was 0.45 ± 0.30 D. The postoperative miscorrection was 50.5% in the T3 group, 35.7% in the T4 group, and 27.2% in the T5 group. The incidence of overcorrection was significantly higher in the T3 group than in the T4 and T5 group. In eyes with with-the-rule (WTR) astigmatism, overcorrection was found in 36.4% (32/88 eyes), while in eyes with against-the-rule (ATR) astigmatism, undercorrection was found in 37.6% of cases (44/117 eyes). There were five cases of IOL rotation at 3 months postoperatively. Conclusions: AcrySof Toric IOL was effective in correcting corneal astigmatism and had good rotational stability. However, the incidence of miscorrection, especially for overcorrection, was higher with lower power toric IOL. Patients with WTR astigmatism tend to have overcorrection, while those with ATR show a tendency toward undercorrection, suggesting that these changes considered at the time of cataract surgery.J Korean Ophthalmol Soc 2014;55(11):1636-1641

건성안 환자의 광학적 특성에 대한 객관적인 분석

전혜민,이동준,Hye Min Jeon,Dong Jun Lee 대한안과학회 2014 대한안과학회지 Vol.55 No.11

Purpose: To evaluate the efficacy of Optical Quality Analysis System (OQAS<SUP>Ⓡ) instrument for the assessment of dry eye syndrome. Methods: Dynamic recording of double-pass (DP) retinal images was performed in 1 eye dry eye patients (20 eyes) and in healthy controls (20 eyes) for 20 seconds after eye blinking. Results: The mean objective scatter Index (OSI) value was 4.53 in dry eyes, 0.67 in healthy eyes and the standard deviation of OSI was 1.20 in dry eyes and 1.18 in healthy eyes. The patients with dry eyes showed significantly higher mean OSI and standard deviation values. Ocular scatter increased over time and significant changes occurred 13.5 seconds after blinking. The difference in OSI value between 0 second and 20 seconds was significantly greater in dry eye patients (4.15) than in controls (0.32). Conclusions: Ocular scatter increased over time after blinking. The dry eye patients had larger and more variable ocular scatter index than the controls. OQAS<SUP>Ⓡ may be useful to detect and follow-up tear film-related patient complaints in dry eye syndrome. J Korean Ophthalmol Soc 2014;55(11):1600-1605

당뇨망막병증 환자에서 패턴 범망막광응고술 후 중심와아래 맥락막두께의 변화

전혜민(Hye Min Jeon),채수혜(Sue Hey Chae),안소은(Soh Eun Ahn),김상원(Sang Won Kim),윤희성(Hee Seong Yoon) 대한안과학회 2016 대한안과학회지 Vol.57 No.8

목적: 당뇨망막병증 환자에서 파스칼레이저(pattern scan laser, PASCAL)를 이용한 패턴 범망막광응고술 후 중심와아래 맥락막두께의 변화를 분석하고자 하였다. 대상과 방법: 2013년 2월부터 2014년 12월까지 파스칼레이저를 이용한 패턴 범망막광응고술을 시행 받은 39명 50안을 대상으로 하였다. 대상자를 심한 비증식당뇨망막병증(severe non-proliferative diabetic retinopathy), 증식당뇨망막병증(proliferative diabetic retinopathy)으로 분류하여 비교하였다. 스펙트럼도메인 빛간섭단층촬영의 enhanced depth imaging으로 측정하여 술 전, 술 후 1개월, 3개월의 결과를 분석하였다. 결과: 술 전 중심와아래 맥락막의 두께는 270.42 ± 61.44 μm였고 술 후 1개월에 264.52 ± 60.78 μm, 3개월에 255.74 ± 56.89 μm로 술 후 3개월에 유의한 변화를 보였다. 중심망막두께는 술 전 275.56 ± 50.61 μm에서 술 후 1개월에 295.18 ± 52.80 μm, 3개월에 293.10 ± 57.24 μm로 유의하게 증가하였다. 당뇨망막병증의 중증도에 따른 맥락막두께 변화를 비교하였을 때 두 군 간의 차이는 없었다. 결론: 당뇨망막병증 환자에서 파스칼레이저를 이용한 패턴 범망막광응고술 후 중심와아래 맥락막두께는 감소하였다. Purpose: To evaluate changes in subfoveal choroidal thickness (SFCT) after patterned panretinal photocoagulation (PRP) using pattern scan laser (PASCAL) in patients with diabetic retinopathy. Methods: This study included 39 patients (50 eyes) treated with patterned PRP using PASCAL and who were followed for at least 3 months. Patients were classified into 2 groups according to severity: severe non-proliferative diabetic retinopathy and proliferative diabetic retinopathy. SFCT was measured by enhanced depth imaging of spectral-domain optical coherence tomography. The change in SFCT was analyzed at 1 and 3 months after PRP. Results: SFCT was 270.42 ± 61.44 μm before PRP, 264.52 ± 60.78 μm at 1 month, and 255.74 ± 56.89 μm at 3 months after PRP. Significant change of SFCT was found at 3 months after PRP. Central macular thickness was 275.56 ± 50.61 μm before PRP and increased to 295.18 ± 52.80 μm and 293.10 ± 57.24 μm at 1 and 3 months post-treatment, respectively. There were no significant differences between groups in SFCT at baseline or in the amount of change in SFCT after PRP. Conclusions: SFCT significantly decreased after patterned PRP using PASCAL.

최적화 특징 선택을 활용한 머신러닝 기반 랜섬웨어 분류 방법 연구

전혜민 ( Hye-min Jeon ),최두섭 ( Doo-seop Choi ),임을규 ( Eul Gyu Im ) 한국정보처리학회 2024 한국정보처리학회 학술대회논문집 Vol.31 No.1

철근콘크리트 원형기둥의 구속효과에 대한 이론식 분석

전혜민 ( Jeon Hye-min ),하상수 ( Ha Sang-su ) 한국구조물진단유지관리공학회 2015 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.19 No.2

미용사의 교육훈련이 이직의도에 미치는 영향

전혜민 ( Hye Min Jeon ),임은진 ( Eun Jin Im ) 한국미용학회 2010 한국미용학회지 Vol.16 No.2

In this study, the author measured job training and satisfaction regarding personal relations that are measuring-elements for the occupational satisfaction of the hair designers for the purpose of recognizing the influence that these elements contribute to the intention to change the occupation. For this purpose, the author surveyed 450 hair designers who works in the beauty shops that are located in the Seoul and Gyeonggi province, and who are extracted by random sampling from 2009 August 5 until September 14th. Followings are results: First, they thinks that the cut-education most important as the results regarding the recognition of the degree regarding job training, answered average frequency of technical education was 1~2 which is got in the work place, indicated that necessity of employees` education and objective consciousness shortage as the most significant points, and pointed technical enhancement as the most important purpose of the employees` job trainin. As a result, it was found that enhancement of job training lowers the job turnover intention.

첫 원시교정안경 착용 후 내사시가 교정되기까지 오래 걸린 굴절조절내사시의 임상양상

전혜민(Hye Min Jeon),양헌(Heon Yang),김상원(Sang Won Kim),김선아(Sun Ah Kim) 대한안과학회 2015 대한안과학회지 Vol.56 No.5

목적: 원시교정안경을 생애 처음으로 착용 후 내사시가 교정되기 시작한 기간에 따른 굴절조절내사시 환아들의 임상양상에 대해 보고하고자 한다. 대상과 방법: 굴절조절내사시 환자 75명의 의무기록을 분석하였고, 최소 2년 이상 관찰한 경우만 포함하였다. 굴절검사결과, 내사시각, 약시 유무, 안경착용 2개월 안에 8 PD 이내로 교정된 군과 오랜 경과관찰이 필요했던 군을 비교하였다. 결과: 첫 안경 착용 나이는 평균 4.74 ± 2.34세, 경과관찰 기간 50.17 ± 14.18개월, 안경교정 전 내사시는 원거리 25.42 ± 10.07 PD, 근거리 27.72 ± 11.45 PD였다. 조절마비굴절검사 우안 +4.86 ± 2.41D, 좌안 +5.05 ± 1.06D, 8명(10.67%)은 +2D 이하였다. 안경착용 후 8 PD 이내로 교정되기까지 2개월 이내 61명(81.3%), 2-6개월 6명(8%), 6-12개월 4명(5.3%), 12개월 이후 4명(5.3%)이었다. 2개월보다 더 오랜 경과관찰이 필요했던 14명(18.7%)에서 원시는 더 적었고(+4.02D vs. +5.17D), 내사시는 원거리, 근거리 모두 유의하게 심했으며(원거리 30.79 ± 10.79 PD vs. 24.17 ± 9.56 PD, p=0.03, 근거리 34.00 ± 14.20 PD vs. 26.25 ± 10.31 PD, p=0.02), 약시의 빈도가 더 높았다(71.4% vs. 47.5%). 결론: 2개월 이후에도 내사시가 8 PD 이내로 교정되지 않더라도, 환아의 사시각, 원시의 정도 등을 고려하여 긴 기간 동안 경과관찰이 필요한 경우가 있다. <대한안과학회지 2015;56(5):764-770> Purpose: To report clinical aspects of children diagnosed with refractive accommodative esotropia after wearing their first glasses to correct hyperopia accompanied with esodeviation. Methods: The present study included 75 children followed up for at least 24 months. Age, spherical equivalent of refractive error, angle of deviation and presence of amblyopia were analyzed according to the duration between first wearing glasses and control of esotropia within 8 PD (≤2 months vs. >2 months). Results: The mean age was 4.48 ± 2.08 years and mean follow-up was 50.17 months. Initial deviation angle without glasses was 25.43 ± 10.07 PD at far, 27.72 ± 11.45 PD at near, spherical equivalent was +4.86 ± 2.41 D in right eyes, +5.05 ± 1.06 D in left eyes and 8 of 75 patients (10.67%) had ≤2 D of hyperopia. Esotropia was controlled within 8 PD with hyperopic glasses in 61 of 75 children (81.3%) within 2 months, 6 (8%) within 3-6 months, 4 (5.3%) within 6-12 months and 4 (5.3%) after 12 months. In comparison, esotropia was controlled ≤2 months in 61 of 75 children (81.3%); 14 of 75 children (18.7%) requiring >2 months had less hyperopia (+4.02 D vs. 5.17 D), more severe esodeviation both at far (30.79 ± 10.79 PD vs. 24.17 ± 9.56 PD, p = 0.03) and at near distance (34.00 ± 14.20 PD vs. 26.25 ± 10.31 PD, p = 0.02) and higher initial amblyopia prevalence rates (71.5% vs. 47.5%). Conclusions: Several patients needed longer follow-up until esotropia was controlled within 8 PD after wearing hyperopic glasses considering the amount of hyperopia and angle of esodeviation. J Korean Ophthalmol Soc 2015;56(5):764-770

GFRP 섬유와 PET 섬유로 구속된 콘크리트 공시체의 보강효과

전혜민 ( Hye-min Jeon ),하상수 ( Sang-su Ha ),김소영 ( So-young Kim ),최동욱 ( Donguk Choi ) 한국구조물진단유지관리공학회 2016 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.20 No.1

서울시 영유아 공공급식 식품영양관리 기준의 적용 가능성 평가

전혜민(Hye-Min Jeon),김기랑(Kirang Kim),이해연(Hae-Yeon Yi),황지윤(Ji-Yun Hwang) 한국식품영양과학회 2017 한국식품영양과학회지 Vol.46 No.8

본 연구는 양적 · 질적 조사를 통해 기존 개발된 ‘서울시 영유아 공공급식 식품영양관리기준-어린이집’의 적용 가능성을 평가하여 향후 확대 적용을 위한 토대를 마련하고자 실시하였다. 기 개발된 서울시 공공급식 식품영양관리기준의 문항별 이해도, 적용도, 어린이집 건강급식 실천력을 향상시키기 위한 평가 문항으로서의 적합도를 평가하기 위해 2015년 11월 서울시를 통해 서울시에 소재하는 어린이집, 유치원, 지역아동센터 총 82개소에 이메일로 설문 조사하였다. 또한, 서울시 관내 공공급식을 하는 어린이집, 유치원 원장 및 육아지원센터 영양사와의 포커스 그룹 인터뷰를 통해 각 기준의 적절성을 최종 검토하여 본 기준을 확대 적용하기 위한 수정안을 도출하였다. 기 개발된 서울시 공공급식 식품영양 관리기준의 설문조사 결과(n=82), 조사 항목에 대한 이해도 86.9%, 적용도 80.7%, 어린이집 건강급식 실천력을 향상시키기 위한 평가 문항으로서의 적합도가 82.6%로 도출되었다. 포커스 그룹 인터뷰를 통해 기준의 적용 가능성을 질적평가한 결과, 확대 적용을 위해서 식자재 공급업체용 가이드라인의 필요성, 항목의 근거와 목적의 합치성, 맥락적 상황고려 및 서울시 차원의 기반 구축의 필요성 등 수정을 위한 4가지 요인이 도출되었다. 따라서 기준의 확대 적용을 위해 공공급식 식품영양관리기준안의 가이드라인을 영유아 공공급식 제공 기관용으로 제시하되 일부 가이드라인은 식자재 공급업체가 필수나 권고로 제공해야 할 사항으로 구분하여 별도의 가이드라인을 개발하였다. ‘서울시 공공급식 식품영양관리기준’의 적용 가능성 평가를 통해 기준이 확대적용될 수 있도록 가이드라인 수정 및 보완을 통해 공공급식을 이용하는 영유아의 건강 증진 및 지속할 수 있는 환경 유지에 기여할 수 있음을 제시하였다. 또한, 서울시의 지속적인 검토로 급식관리자 전용 식품영양성분 관리 및 발주 통합프로그램 도입 등을 위한 후속 연구가 필요하다고 생각한다. This study aimed to evaluate the applicability of “food and nutrition standards for child care setting in the Seoul Metropolitan Government” using quantitative and qualitative surveys and lay the groundwork for future expansion. To evaluate the understanding and applicability of each item of the standards and utilize goodness of fit as an evaluation item to improve practicality of the child care center’s health foodservice, we surveyed 82 child care centers, kindergartens, and community children centers in Seoul by e-mail through the Seoul Metropolitan Government in November 2015. Using focus group interviews with directors of child care centers and kindergartens as well as dieticians of child care support centers who had conducted public foodservice in Seoul, the appropriateness of each standard was finally reviewed, and amendments to extend this standard were derived. Results of the survey show an understanding of 86.9% and an applicability of 80.7%. Moreover, the applicability of the evaluation items for assessing improvement of health foodservice practices at the child care center was 82.6%. Qualitative evaluation of the applicability of standards through focus group interviews identified four factors for extended application: necessity of a guideline for separate food ingredient suppliers, conformity of the basis and purpose of the item, consideration of contextual situations, and necessity of establishing a Seoul-level foundation. Therefore, guidelines for the standards should be suggested for those providing public food services for children. Furthermore, separate guidelines categorized by items that food ingredient suppliers need to provide should be mandatory or recommended. Evaluation of the applicability of the standards suggests that revising and supplementing the guidelines in order to extend the standards can contribute to health promotion and a sustainable environment for children using public foodservice. Follow-up studies and supports are needed for sustainable food and nutrition management programs.

실패한 누낭비강연결술에서 내시경적 재개통술 시 실리콘관 삽입 수에 따른 수술효과

전혜민(Hye Min Jeon),안동섭(Dong Seob Ahn),노주헌(Joo Heon Roh) 대한안과학회 2015 대한안과학회지 Vol.56 No.5

목적: 코눈물관 폐쇄 환자에서 일차 누낭비강연결술의 실패원인을 분석하고 내시경적 누낭비강연결 재개통술 시 실리콘관 삽입 수에 따른 수술효과에 대해 알아보고자 하였다. 대상과 방법: 코눈물관 폐쇄로 진단받고 일차 내시경적 누낭비강연결술 후 실패하여 2007년 3월부터 2012년 12월까지 본원에서 재개통술을 받은 환자 67명 70안을 대상으로 하여 실패 원인, 첫 수술 후 수술실패 진단까지의 기간을 조사하였다. 재개통술은 비강내시경과 누소관경유 다이오드 레이저를 이용하여 육아종제거, 막제거, 비강내 협착해리와 함께 한 개 또는 두 개의 실리콘관 삽입술을 시행하였으며, 삽입한 실리콘관 수에 따른 술 후 성공률을 비교하였다. 결과: 일차 누낭비강연결술 후 실패가 진단되기까지 평균기간은 4.6개월이었으며, 실패원인으로 육아종 형성이 35안(50%)으로 가장 흔하였고, 막성폐쇄가 23안(32.9%), 비강내 협착이 7안(10%), 기능적 폐쇄가 5안(7.1%)이었다. 45안은 한 개의 실리콘관(A군)을, 25안은 두 개의 실리콘 관(B군)을 삽입하였고, 1개 실리콘 관을 삽입한 A군의 성공률은 77.8% (35/45안), 2개 실리콘 관을 삽입한 B군의 성공률은 80.0% (20/25안)였다(chi-square test, p=0.828). 결론: 실패한 누낭비강연결술에서 다이오드 레이저를 이용한 내시경적 재개통술 시 두 개의 실리콘관 삽입은 추천하지 않는 방법이다. Purpose: To evaluate the causes of failed dacryocystorhinostomy (DCR) and the effects of transcanalicular diode laser-assisted endonasal revision surgery according to the number of silicone tubes. Methods: Sixty-seven patients (70 eyes) who underwent revision surgery using transcanalicular diode laser for failed primary en-donasal DCR at Sungmo Eye Hospital between March 2007 and December 2012 were studied retrospectively. The causes of failed DCR and the time of recurrence were evaluated. The revision surgeries were endoscopic removal of granuloma and mem-brane and synechiolysis with intubation of 1 or 2 silicone tubes. We compared the results of revision surgery with 1 silicone tube and 2 silicone tube intubations. Results: Recurrence occurred after a mean duration of 4.6 months following the first DCR. The causes of surgical failure were granuloma (35 eyes), membranous obstruction (23 eyes), synechia (7 eyes), and functional obstruction (5 eyes). We performed revision surgery with 1 silicone tube intubation in 45 eyes (group A) and 2 silicone tube intubations in 25 eyes (group B). The final success rates in groups A and B were 75.6% (34/45) and 84% (21/25), respectively (chi-square test, p = 0.828). Conclusions: Transcanalicular diode laser-assisted endonasal revision surgery with 2 silicone tubes is not recommended. J Korean Ophthalmol Soc 2015;56(5):651-655