실명한 녹내장안에서 통증 조절을 위해 시행한 녹내장 수술의 경과

강은민,이윤하,서상진,김찬윤,성공제,홍사민,Eun Min Kang,Yun Ha Lee,Sang Jin Seo,Chan Yun Kim,Gong Je Seong,Samin Hong 대한안과학회 2014 대한안과학회지 Vol.55 No.10

Purpose: To investigate the clinical outcome of glaucoma surgery performed in patients with painful blind glaucomatous eyes. Methods: A single-center, retrospective, interventional case series was performed by reviewing the medical records of 74 glaucoma patients (74 eyes) who underwent Ahmed glaucoma valve (AGV) implantation or trabeculectomy for painful blind eyes from October 2004 to January 2014. Blindness was defined as visual acuity less than hand motion at the time of surgery. Preoperative and postoperative intraocular pressure (IOP), number of anti-glaucoma medications, and presence of pain were compared in the patients grouped according to the type of glaucoma surgery. The glaucoma type, history of previous glaucoma surgery and postoperative failure/complications were also evaluated. Results: AGV implantation was performed in 42 eyes (56.8%) of 42 patients, and trabeculectomy was performed in 32 eyes (43.2%) of 32 patients. The average IOP decreased from 41.73 ± 11.77 mm Hg before surgery to 14.29 ± 9.34 mm Hg at five years after the surgery (<EM>p </EM>< 0.001, paired t-test). The IOP was not significantly different between the groups at any follow-up time point (<EM>p</EM> = 0.949, linear mixed model). Overall, three patients (4.1%) still experienced eye pain after surgery, IOP greater than 30 mm Hg was observed in eight eyes (10.8%), and additional surgery was required in 11 eyes (14.9%). Evisceration was required in only two eyes (2.7%). Sympathetic ophthalmia was not found in any patient during the follow-up period. Conclusions: Glaucoma surgery including AGV implantation/trabeculectomy was effective and safe even for painful blind eyes. The procedure may be considered as an alternative to enucleation as an initial surgical option for painful blind glaucomatous eyes. J Korean Ophthalmol Soc 2014;55(10):1511-1519

허혈시신경병증 및 시신경교종과 유사한 소견을 보인 시신경염

강은민,권계윤,최문정,김찬윤,성공제,홍사민,Eun Min Kang,Kye Yoon Kwon,Moon Jung Choi,Chan Yun Kim,Gong Je Seong,Samin Hong 대한안과학회 2014 대한안과학회지 Vol.55 No.11

Purpose: To report a case of optic neuritis difficult to differentiate from ischemic optic neuropathy and optic nerve glioma. Case summary: A 63-year-old male visited our clinic because of a sudden painless decrease in visual acuity in his right eye. He had a relative afferent pupillary defect and inferior altitudinal scotoma with disc pallor in his right eye. Ischemic optic neuropathy was suspected based on these clinical observations. However, a focal enhancing lesion was found in the intracranial portion of the right optic nerve on gadolinium-enhanced T1-weighted MRI. The radiologist’s report revealed right intracranial optic glioma. Optic neurectomy was planned in accordance with the suspicion for optic glioma. However, a systemic mega-dose methylprednisolone therapy which is relatively less invasive was performed first based on the decision that optic neuritis should be distinguished from optic nerve glioma. The patient was hospitalized and 1 gram of methylprednisolone was injected intravenously daily for 3 days. The patient's visual acuity in the right eye improved from 0.1 before treatment to 0.3 after treatment. MRI scans at 8 months after steroid treatment showed disappearance of the previously enhanced lesion suspicious for optic glioma with developed atrophic change. The patient was finally diagnosed with optic neuritis based on these results. Conclusions: Careful differential diagnoses and therapeutic approaches to possible diseases are necessary because optic neuritis can manifest as a variety of clinical entities and imaging findings.J Korean Ophthalmol Soc 2014;55(11):1721-1725

Relationship between Peripapillary Retinal Nerve Fiber Layer Thickness Measured by Optical Coherence Tomography and Visual Field Severity Indices

강은민,홍사민,김찬윤,성공제 대한안과학회 2015 Korean Journal of Ophthalmology Vol.29 No.4

Purpose: Though there are many reports regarding the structure-function relationship in glaucoma, they are toocomplicated to apply to the routine clinical setting. The aim of this study was to investigate the direct relationshipbetween peripapillary retinal nerve fiber layer (RNFL) thickness measured by optical coherence tomography(OCT) and visual field (VF) severity indices computed by standard automated perimetry. Methods: This cross-sectional comparative study included 104 glaucomatous patients and 59 healthy subjects. Peripapillary RNFL thickness was measured by spectral domain (SD) and time domain (TD) OCTs. Four glaucomaVF severity indices, including mean deviation (MD), pattern standard deviation (PSD), Collaborative InitialGlaucoma Treatment Study (CIGTS) VF score, and Advanced Glaucoma Intervention Study (AGIS) VF score,were calculated using standard automated perimetry. The Pearson’s correlation coefficients (r) between theaverage and quadrants of peripapillary RNFL thicknesses and the four VF severity indices were calculated. Results: In glaucomatous eyes, the r value between the average RNFL thickness measured by SD OCT andeach VF severity index were 0.562, -0.514, -0.577, and -0.567 for the MD, PSD, CIGTS VF score, and AGISVF score, respectively (all p < 0.001). Among each quadrant, the inferior RNFL thickness showed the largest rvalue; 0.587, -0.552, -0.613, and -0.598 for the MD, PSD, CIGTS VF score, and AGIS VF score, respectively (allp < 0.001). Measurements by TD OCT showed similar strengths of association with SD OCT. Conclusions: Moderate correlation was identified between peripapillary RNFL thicknesses measured by SD/TDOCT and glaucoma VF severity indices. Among each quadrant, the inferior RNFL thickness showed the greatestassociation with glaucoma VF severity indices. There was no significant difference according to the typeof VF severity index or the type of OCTs. Purpose: Though there are many reports regarding the structure-function relationship in glaucoma, they are too complicated to apply to the routine clinical setting. The aim of this study was to investigate the direct relationship between peripapillary retinal nerve fiber layer (RNFL) thickness measured by optical coherence tomography (OCT) and visual field (VF) severity indices computed by standard automated perimetry. Methods: This cross-sectional comparative study included 104 glaucomatous patients and 59 healthy subjects. Peripapillary RNFL thickness was measured by spectral domain (SD) and time domain (TD) OCTs. Four glaucoma VF severity indices, including mean deviation (MD), pattern standard deviation (PSD), Collaborative Initial Glaucoma Treatment Study (CIGTS) VF score, and Advanced Glaucoma Intervention Study (AGIS) VF score, were calculated using standard automated perimetry. The Pearson’s correlation coefficients (r) between the average and quadrants of peripapillary RNFL thicknesses and the four VF severity indices were calculated. Results: In glaucomatous eyes, the r value between the average RNFL thickness measured by SD OCT and each VF severity index were 0.562, -0.514, -0.577, and -0.567 for the MD, PSD, CIGTS VF score, and AGIS VF score, respectively (all p < 0.001). Among each quadrant, the inferior RNFL thickness showed the largest r value; 0.587, -0.552, -0.613, and -0.598 for the MD, PSD, CIGTS VF score, and AGIS VF score, respectively (all p < 0.001). Measurements by TD OCT showed similar strengths of association with SD OCT. Conclusions: Moderate correlation was identified between peripapillary RNFL thicknesses measured by SD/TD OCT and glaucoma VF severity indices. Among each quadrant, the inferior RNFL thickness showed the greatest association with glaucoma VF severity indices. There was no significant difference according to the type of VF severity index or the type of OCTs.

콘크리트 옹벽용 녹화식물의 생육특성 분석

마호섭,강원석,강은민 경상대학교 농업생명과학연구원 2015 농업생명과학연구 Vol.49 No.1

본 연구는 콘크리트 옹벽에서 배양토와 토양처리에 따른 녹화용 식물의 초기 생육특성을 분석하였으며, 그 결과를 요약하면 다음과 같다. 배양토의 이화학적 성질 분석에서 산림부식토와 일반상토의 pH는 5.18 및 5.02로서 약산성을 보였고, 산림표층토와 혼합토는 4.5이하로서 강한 산성을 나타내었다. 유기물 및 양이온 등 식물생장에 도움이 되는 영양분이 가장 높은 배양토는 일반상토이며, 산림표층토가 가장 낮게 나타났다. 배양토별 발아율은 일반상토 > 산림부식토 > 혼합토 > 산림표층토의 순으로 나타났고, 토양처리의 경우 미생물 50% 처리구 및 미생물 100% 처리구가 무처리구 보다 발아량이 높게 나타났다. 배양토에 따른 페네리얼의 월별생장량과 평균생장량에서도 일반상토 > 산림표층토 > 혼합토 > 산림부식토 순으로 생장량이 높게 나타났으며, 토양처리에 따른 페네리얼의 총생장량은 미생물 50% 처리구 및 미생물 100% 처리구가 무처리구 보다 높게 나타났다. 생장량에 있어서 배양토, 토양처리 2개요인 내 주 효과 및 요인 간 상호작용 분석 결과 효과가 있는 것으로 나타나 콘크리트 옹벽의 녹화용 식물의 조기생육을 위하여 적절한 배양토의 선발과 미생물제재의 처리는 매우 필요하다고 생각된다. The purpose of this study is conducted to analyze the early growth characteristics of Lolium perenne, revegetation plant by the soil media and soil treatment in concrete retaining wall. The results obtained are summarized as follows. The forest humus and General merchantable soil showed a slightly acidic with pH 5.18 and 5.02. The acidic pH of forest topsoil and mixed soil Showed a strong acid with lower than 4.5. The nutrients for plant growth such as organic matter and cation was highest in general merchantable soil, was the lowest in forest topsoil. The rate of average germination by soil media was showed in order of merchantable soil > forest humus soil > mixed soil > top soil of forest. In the germination rate by microorganisms treatment of soil media, The microorganism 50% and microorganism 100% was higher than control plot. The mean growth and monthly growth by soil media was showed in order of merchantable general soil, mixed soil, humus soil, top soil of forest. In the total growth of plant by microorganisms treatment of soil media, The microorganism 50% and microorganism 100% showed higher than control plot. The soil media and soil treatment showed to the significance at 1% level, and the interactive effects of these have a significance at 5% level. I think it is very necessary in the selection and use of appropriate soil media and microorganism for the early growth in concrete retaining wall.

혈액학적 이상과 동반된 급성 구후시신경염

박시윤,강은민,이윤하,김찬윤,성공제,홍사민,Si Yoon Park,Eun Min Kang,Yun Ha Lee,Chan Yun Kim,Gong Je Seong,Samin Hong 대한안과학회 2014 대한안과학회지 Vol.55 No.10

Purpose: We present a case of a patient with optic neuritis who had underlying suspicious idiopathic thrombocytopenic purpura.Case summary: A 35-year-old female with no other systemic disease visited our clinic due to acutely decreased visual acuity in her left eye 10 days in duration. Relative afferent pupillary defect was observed, but without definite papilledema. Based on brain magnetic resonance imaging (MRI), optic neuritis was suspected. Laboratory tests showed increased red blood cells, hemoglobin and, hematocrit levels and decreased platelets. Peripheral blood smear test showed decreased platelets, relative lymphocytosis and atypical lymphocytes. Specific antibodies for autoimmune disease were not present. High-dose steroid pulse therapy (methyl prednisolone 1.0 g/d, 3 days) was started. One month after treatment her visual acuity and platelet count recovered and her visual field defect improved. J Korean Ophthalmol Soc 2014;55(10):1567-1572

강우특성에 따른 임분별 탁도 변화

강원석,강은민,민형식,박승환,이성재,마호섭 한국임학회 2011 산림과학 공동학술대회 논문집 Vol.2011 No.-

임분별 소류토사량에 미치는 영향인자 분석

강원석,강은민,민형식,박승환,이성재,마호섭 한국임학회 2011 산림과학 공동학술대회 논문집 Vol.2011 No.-

임분별 탁도에 미치는 영향인자 분석

강원석,강은민,민형식,박승환,이성재,마호섭 한국임학회 2011 산림과학 공동학술대회 논문집 Vol.2011 No.-

식생을 이용한 콘크리트 생태옹벽의 초기발아 특성분석

마호섭,강원석,강은민,민형식,박승환,이성재 한국임학회 2012 산림과학 공동학술대회 논문집 Vol.2012 No.-

식생을 이용한 콘크리트 생태옹벽 시공 및 관리

마호섭,강원석,강은민,민형식,박승환,이성재 한국임학회 2012 산림과학 공동학술대회 논문집 Vol.2012 No.-