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이승은,장무환,Seung Eun Lee,Moo Hwan Chang 대한안과학회 2013 대한안과학회지 Vol.54 No.8
Purpose: To evaluate the success rate of pneumatic retinopexy and the preoperative factors influencing the results in the rhegmatogenous retinal detachment patients. Methods: We analyzed retrospectively the preoperative and postoperative retinal findings and postoperative complication in 152 eyes of 150 patients with uncomplicated rhegmatogenous retinal detachment, who had undergone pneumatic retinopexy and were followed up for at least 3 months. We analyzed preoperative factors, including age, sex, location and numbers of retinal tears, duration of retinal detachment, lens status, and refractive error. Results: The success rate of the initial surgery was 72.37%. The success rate was significantly higher in non-high myopic and phakic eyes, and when the retinal detachment was less than 3 quadrants with the retinal break located superiorly. Accordingly, the success rate was 85.87% (79 of 92 eyes). Conclusions: In the present study, the anatomical success rate of primary pneumatic retinopexy was more than 70%. If pneumatic retinopexy is performed to non-high myopic, phakic eyes, and retinal detachment is less than 3 quadrants with superior retinal break, the surgeon can expect good anatomical outcomes and consider pneumatic retinopexy as a first management in rhegmatogenous retinal detachment patients.
당뇨황반부종에서 다국소 망막전위도검사와 치료 후 시력과의 상관관계
이관훈,장무환,안정현,Kwan Hoon Lee,Moo Hwan Chang,Jung Hyun Ahn 대한안과학회 2010 대한안과학회지 Vol.51 No.1
Purpose: To evaluate the prognostic value of multifocal electroretinography (mfERG) after a decrease of retinal thickness in eyes with diabetic macular edema (DME). Methods: Sixty patients (60 eyes) underwent intravitreal injection of triamcinolone acetonide or bevacizumab for diabetic macular edema. Eyes were divided into three groups, according to foveal thickness : Group A (<500 μm, n=20 eyes), Group B (500 μm≦ <800 μm, n=20 eyes), and Group C (≧800 μm, n=20 eyes). Best-corrected visual acuity (BCVA) and mfERG responses from the most central seven hexagons were analyzed both before and after treatment. Results: The pre-injection P1 amplitudes of mfERG correlated significantly with end-point BCVA in Groups A and B (p<0.05), but did not correlate with end-point BCVA (p>0.05) in Group C. Conclusions: The level of P1 amplitudes of mfERG may be a useful tool to predict visual outcomes after a decrease of retinal thickness in patients with diabetic macular edema. J Korean Ophthalmol Soc 2010;51(1):29-34
원추각막 교정을 위해 시행한 각막링 삽입술 후 발생한 진균성 각막염 1예
김시범,장무환,Si Bum Kim,Moo Hwan Chang 대한안과학회 2012 대한안과학회지 Vol.53 No.6
Purpose: To report a case of fungal keratitis 3 days after intracorneal ring segment (ICRS) implantation for keratoconus. Case summary: A 65-year-old woman was referred to our clinic with refractory infectious keratitis in her left eye 3 days after ICRS insertion for keratoconus. Slit lamp examinations revealed infiltrates around the incision site with cellular reaction in the anterior chamber after the ICRS had been removed. Corneal scrapings were obtained for staining and cultures, and intensive topical antibiotics were administered. Initial microscopy and cultures were negative. Despite the use of intensive topical antibiotics, there was no improvement. Hyphae were isolated from additional corneal scrapings. The patient’s symptoms and corneal findings improved following administration of topical amphotericin B and oral itraconazole. Conclusions: Infectious keratitis after ICRS implantation is an uncommon but sight-threatening complication. Fungal keratitis should also be considered if infectious keratitis after ICRS is unresponsive to antibiotics. J Korean Ophthalmol Soc 2012;53(6):866-871
결막 임파종으로 의심된 환자에서 확진된 엡스타인-바 바이러스 결막종물 1예
신경윤,장무환,경성은,Kyoung Yoon Shin,Moo Hwan Chang,Sung Eun Kyung 대한안과학회 2014 대한안과학회지 Vol.55 No.10
Purpose: To report a case of conjunctival mass with infectious mononucleosis by Epstein-Barr virus (EBV) confirmed with Epstein-Barr encoding region (EBER) in situ hybridization. Case summary: A 8 year-old male without underlying disease was referred with counjunctival mass on the right eye starting 3 days ago. In ophthalmologic evaluation, there was injected, nontender, and “salmon patch” appearance conjunctival lesion on right superior bulbar conjunctiva. The patient was admitted to pediatrics with sore throat and fever. The tonsil were enlarged and white blood cell count was 14960/uL. EBV polymerase chain reaction (PCR) test and Viral capsid antigen Immunoglobulin M (VAC IgM) test were positive, the diagnose of infectious mononucleosis by EBV was made. After 5 days steroid eyedrop therapy, biopsy was performed because the lesion was not improved. There were lymphocyte infiltration, chronic inflammation and positive in EBER in situ hybridization. Conclusions: Elevated and pinkish lesion on conjunctiva, EBV lesion should be considered as differential diagnosis. J Korean Ophthalmol Soc 2014;55(10):1554-1557
근시성 맥락막 신생혈관에 대한 유리체강내 베바시주맙 주입술 장기간 치료효과
서영승,장무환,Young Seung Seo,Moo Hwan Chang 대한안과학회 2011 대한안과학회지 Vol.52 No.1
Purpose: To evaluate the long-term therapeutic effects of intravitreal bevacizumab on myopic choroidal neovascularization (CNV). Methods: Medical records of 6 patients who underwent intravitreal bevacizumab injection for myopic CNV and were followed for more than 2 years, were retrospectively investigated. The best corrected visual acuity was compared at 1,3,12, and 24 months after injection. Two years after the injection, a fluorescein angiography and optical coherence tomography (OCT) were performed to evaluate the central macular thickness and leakage of CNV. Results: The mean best corrected visual acuity was 1.16 ± 0.43 (logMAR), 0.45 ± 0.21 (logMAR), 0.29 ± 0.23 (logMAR), 0.14 ± 0.11 (logMAR), and 0.11 ± 0.06 (logMAR) at baseline, 1, 3, 12, and 24 months after injection, respectively. The average number of injections was 1.33. In OCT, 2 years after bevacizumab injection, central foveal thickness was significantly decreased as compared to the baseline, and fluorescein angiography showed no leakage of fluorescein. Conclusions: Intravitreal bevacizumab injection for the treatment of myopic CNV was effective in maintaining postoperative visual acuity for 2 years. J Korean Ophthalmol Soc 2011;52(1):34-40
임신 중 재발된 시신경 유두 출혈 환자에서 보인 시신경 유두 드루젠 1예
이찬호(Chan Ho Lee),장무환(Moo Hwan Chang),경성은(Sung Eun Kyung) 대한검안학회 2017 Annals of optometry and contact lens Vol.16 No.4
Purpose: We report a case of optic disc drusen associated with recurrent optic disc hemorrhage. Case summary: A 37 years-old woman was referred with recurrent optic disc hemorrhage. She was in pregnancy and took regular follow up, because of blurred vision and floater in her left eye after headache. She showed normal best corrected visual acuity, normal pupillary light reflex and normal color vision in both eyes. She showed enlarged blind spot in visual field test. The optic disc hemorrhage and blurred disc margin were found in superior temporal part of optic disc in her left eye. Fluorescein angiography showed block fluoroscence in superior temporal part of optic disc in left eye. The optical coherence tomography showed high reflectivity and heterogeneous lesion between retinal pigment epithelium and outer segment. There is no remarkable change in blood coagulability test. The magnetic resonance imaging showed no lesion. After 2 weeks, there was no optic disc hemorrhage. Conclusions: Optic disc drusen can be found incidentally without symptom. The hemodynamic change caused by pregnancy could make recurrent optic disc hemorrhage in patient with optic disc drusen. It could be helpful to consider the possibility of optic disc drusen to avoid unnecessary test and treatment, when patients have optic disc hemorrhage during pregnancy.
폐렴사슬알균 수막염 환자에서 발생한 양안 내인성 안내염 1예
이민수,장무환,Min Soo Lee,Moo Hwan Chang 대한안과학회 2013 대한안과학회지 Vol.54 No.2
Purpose: To report a case of bilateral endogenous endophthalmitis in a Streptococcus pneumoniae meningitis patient. Case summary: A 45-year-old woman with bacterial meningitis was referred to the ophthalmologic clinic with acute visual impairment in both eyes. The patient`s visual acuities were hand motion in both eyes. Ophthalmoscopy revealed inflammation in the anterior chamber and vitreous opacities in both eyes. Streptococcus pneumoniae was isolated in the cerebrospinal fluid sample, but not in vitreal, blood samples. Vision improved to 70/100 in the right eye and 2/100 in the left eye after 8 days of treatment. Conclusions: Endogenous endophthalmitis constitutes a rare complication of Streptococcus pneumoniae meningitis, and a prompt diagnosis and administration of empirical intravitreal antibiotics can lead to a more favorable visual prognosis.
백내장수술 후 각막 천공 및 인공수정체 탈출을 보인 세라티아 마르세센스 안내염 1예
신용균,장무환,경성은,Yong Kyun Shin,Moo Hwan Chang,Sung Eun Kyung 대한안과학회 2013 대한안과학회지 Vol.54 No.10
Purpose : To report a case of <em>Serratia marcescens</em> endophthalmitis following phacoemulsification and posterior chamber intraocular lens implantation. Case summary: A 64-year-old male with a history of diabetes, hypertension, cardiovascular disease was referred with right ocular pain and reduced vision 1 day after cataract surgery. On admission, hypopyon on anterior chamber by slit lamp examination and anterior vitreous was hazy according to ultrasonography. We immediately performed intravitreal antibiotics injection and microbiological analysis of anterior chamber and vitreous samples was performed. On day 3, persistent cornea stormal infiltration and cornea perforation were visible and the organism was identified as <em>S. marcescens</em>. Despite appropriate antibiotic treatment the eye continued to deteriorate. Conclusions: <em>S. marcescens</em> endophthalmitis was diagnosed and treated immediately, but rapid progression and outcome were unsatisfactory.