백내장 수술 후 발생한 안내염에서 23게이지 결막경유 무봉합 유리체절제술의 임상성적

전찬양,이태곤,나성진 대한안과학회 2011 대한안과학회지 Vol.52 No.10

Purpose: To report the clinical outcomes and utility of 23-gauge (G) transconjunctival sutureless vitrectomy (TSV) in patients with postoperative endophthalmitis following cataract surgery. Methods: The medical records of 16 patients (17 eyes) who underwent 23-G TSV between January 2008 and December 2009 at Konyang University Hospital due to postoperative endophthalmitis following cataract surgery were retrospectively analyzed. The pre- and post-operative best-corrected visual acuities (BCVA), changes in intraocular pressure, the time from diagnosis to surgery, the intraoperative and postoperative complications, and the average duration of hospitalization were investigated. Results: The mean BCVA significantly improved from log MAR 1.89 ± 1.03 to log MAR 0.42 ± 0.82 (p = 0.001), and the mean intraocular pressure changed from 16.1 ± 4.1 mm Hg at baseline to 16.2 ± 3.3 mm Hg on the first postoperative day without any significant difference (p = 0.955). In addition, none of the patients required sutures to treat wound leakage or showed hypotony on follow-up observation. The average operation time was 64.7 ± 22.5 minutes, and the average duration of hospitalization was 5.4 ± 4.5 days. Conclusions: The use of 23-G TSV in patients with postoperative endophthalmitis following cataract surgery may offer more convenience for the surgeon and more comfort for the patient. In addition, the patient may return to normal life earlier with a shortened duration of hospitalization. J Korean Ophthalmol Soc 2011;52(10):1167-1172

양안의 장액망막박리를 동반한 뒤공막염 2예

전찬양,강효정,나성진,이태곤 대한안과학회 2012 대한안과학회지 Vol.53 No.1

Purpose: To report 2 young female patients with bilateral posterior scleritis and serous retinal detachment. Case summary: An 11-year-old girl (Case 1) and a 16-year-old girl (Case 2) visited our clinic with bilateral ocular pain, redness, and blurred vision. Slit lamp examinations revealed severe bilateral scleral injection and mild anterior chamber reactions. Fundus examinations showed bilateral serous retinal detachments in the macular area. In both patients, diffuse multifocal leaking and pooling were found at the macula in the early and late phase fluorescein angiography, respectively. On the B-mode ultrasounds and orbital images (MRI or CT), scleral thickening with retention of subtenons fluid were found. There were no systemic diseases associated with the conditions. We diagnosed the patients with bilateral posterior scleritis and administered systemic steroids. After systemic steroid treatment, all of the symptoms were alleviated. Three months after the regression, bilateral posterior scleritis recurred in patient 2. Oral cyclosporine 100 mg was additionally prescribed in addition to the previous medications that she had taken during her first treatment. Conclusions: Two young patients diagnosed with posterior scleritis and serous retinal detachment was treated with systemic steroids. With proper examination and treatment, posterior scleritis can be treated with no complications. J Korean Ophthalmol Soc 2012;53(1):168-174

항공기 용 복합재 브레이크 페달 개발

양승운,한진욱,김광수,전찬원,강규섭 한국항공우주학회 1998 한국항공우주학회 학술발표회 논문집 Vol.- No.-

위아래 덧눈꺼풀 교정술을 동시에 시행한 소아에서 수술 후 시력과 난시의 변화

현동원,전찬양,진선영,하명숙,Dong Won Hyun,Chan Yang Jeon,Sun Young Jin,Myung Sook Ha 대한안과학회 2011 대한안과학회지 Vol.52 No.3

Purpose: To study the changes in vision and astigmatism in epiblepharon patients undergoing simultaneous surgery for both upper and lower eyelid epiblepharon. Methods: The study subjects consisted of 40 eyes of 20 patients who underwent surgery for both upper and lower eyelid epiblepharon from March 2007 to December 2008. The patients were divided into groups depending on the degree of corneal erosion. Uncorrected and best corrected vision, refractive error and the degree of corneal erosion were measured before and three months after the surgery. Results: The mean patient age was 7.40 years, and all but three patients showed postoperative grade 0 corneal erosion. Mean uncorrected logMAR visual acuity was 0.44 preoperatively and 0.25 three months after the operation. The mean best corrected logMAR visual acuity was 0.13 preoperatively and 0.04 three months after the operation (p = 0.02, 0.01). Mean astigmatism showed a significant decrease from 1.46 preoperatively to 1.19 three months after surgery (p = 0.03). Conclusions: After simultaneous surgery for upper and lower eyelid epiblepharon in children, uncorrected and best corrected visual acuity and corneal erosion were all improved. The astigmatism was largely with-the-rule, both before and after surgery. J Korean Ophthalmol Soc 2011;52(3):272-276

특발망막전막에서 유리체절제술 전후 망막층별 두께변화와 시력예후와의 관계

김민환(Min Hwan Kim),전찬양(Chan Yang Jeon),백승국(Seung Kook Baek),장영석(Young Suk Chang),이영훈(Young Hoon Lee) 대한안과학회 2017 대한안과학회지 Vol.58 No.4

목적: 특발망막전막에서 수술 전후 빛간섭단층촬영으로 망막층별 두께를 측정하고 수술 후 시력예후와의 관계에 대해 알아보고자 하였다. 대상과 방법: 단안 특발망막전막 환자 46명, 46안을 대상으로 수술 전, 수술 후 1, 3, 6개월째 스펙트럼영역 빛간섭단층촬영기로 측정이 가능한 모든 망막층들의 두께를 측정하여 수술 전 대상군의 정상안과 비교하였고, 유리체절제술 후 6개월째 두께변화를 측정하여 각 인자들과 수술 후 시력예후와의 상관관계에 대해 알아보았다. 결과: 수술 전 정상안과 비교하여 망막신경섬유층의 두께가 가장 많이 증가하였으며, 시세포층과 망막색소상피층에서는 정상안에 비해 감소하였다. 수술 후 6개월째 망막층별 두께변화는 망막신경섬유층, 신경절세포층, 내망상층, 신경절세포-내망상층, 외망상층에서 감소하였고, 시세포층은 수술 전과 비교해 증가하였다. 수술 전 망막전막안과 정상안 간 신경절세포층의 두께차이(r=0.477, p=0.008)가 수술 후 최대교정시력과 유의한 상관관계를 보였다. 결론: 수술 전 망막전막안과 정상안 간 신경절세포층의 두께차이가 수술 후 최대교정시력과 유의한 상관관계를 보였고, 두께 차이가 클수록 수술 후 시력예후가 불량했다. Purpose: In this study, we evaluated the thickness of each retinal layer using spectral-domain optical coherence tomography (OCT) and investigated the correlation between the thickness of each retinal layer and postoperative visual acuity in eyes with idiopathic epiretinal membrane (ERM). Methods: his retrospective study included 46 eyes from 46 patients with idiopathic ERM who underwent pars plana vitrectomy. Each retinal layer thickness was measured by spectral-domain OCT before operation and at 1, 3, and 6 months after operation. The thickness of each retinal layer was evaluated in the control group before the operation. We performed an analysis of the changes in thickness of each retinal layer at 6 months after operation and then investigated the correlation between the retinal layer thickness and visual improvement. Results: Preoperatively, the thickness of the retinal nerve fiber layer (RNFL) in the ERM group showed more increased compared with that in the control group, and the thickness of photoreceptors and retinal pigment epithelium were decreased compared to those in the control group. At 6 months after the operation, thickness changes were reduced at the RNFL, ganglion cell layer (GCL), inner plexiform layer (IPL), GCL-IPL complex, and outer plexiform layer, while the photoreceptor layer increased compared with the values preoperatively. Differences in the preoperative thickness of GCL between the two groups had a significant correlation with postoperative visual acuity (r = 0.477, p = 0.008). Conclusions: Differences in preoperative thickness of the GCL between the two groups had a significant correlation with postoperative visual acuity. The greater was the thickness of the GCL, the worse was the visual outcome.

아플리버셉트 주사 후 발생한 비감염성 안내염

김청환(Chung Hwan Kim),신지수(Ji Soo Shin),전찬양(Chan Yang Jeon),장영석(Young Suk Chang),이영훈(Young Hoon Lee) 대한안과학회 2016 대한안과학회지 Vol.57 No.6

목적: 유리체내 아플리버셉트(aflibercept) 주사 후 발생한 비감염성 안내염을 보고하고자 한다. 증례요약: 67세 남자 환자가 우안의 습성 나이관련 황반변성으로 유리체내 aflibercept 주사 2일 후 시작된 경미한 통증이 동반된 시력저하를 주소로 내원하였다. 세극등 현미경 검사에서 결막충혈은 경미하였고 전방 및 유리체내 중등도의 염증세포소견이 관찰되었으나 통증 및 전방축농은 없었다. 비감염성 안내염으로 진단하였고 점안 항생제 및 점안스테로이드를 사용하였다. 치료 3일 후 전방 내 염증세포는 빠르게 감소하는 양상이었고, 치료 10일 후 전방 및 유리체내 염증 소견은 관찰되지 않았으며, 교정시력이 0.1로 이전의 시력만큼 회복되었다. 결론: 유리체내 aflibercept 주사 후 발생한 비감염성 안내염은 점안 스테로이드 치료를 통해 비교적 빠른 호전을 기대할 수 있다. <대한안과학회지 2016;57(6):1018-1021> Purpose: To report a case of noninfectious endophthalmitis after intravitreal injection of aflibercept. Case summary: A 67-year-old male patient presented with sudden vision loss 2 days after intravitreal aflibercept injection for neovascular age-related macular degeneration. Mild conjunctival injection and moderate inflammation in the anterior chamber were noted, but he had no ocular pain or hypopyon. The patient was diagnosed with noninfectious endophthalmitis and successfully treated with topical antibiotics and topical steroid eye drops. The infection was apparently cleared at 3 days. At 10 days after the initial presentation, his vision loss resolved completely. Conclusions: Noninfectious endophthalmitis after intravitreal injection of aflibercept can be treated with topical steroids. J Korean Ophthalmol Soc 2016;57(6):1018-1021

PP섬유 및 강섬유 혼입 내화패널의 내화성능 평가

하기주(Ha, Gee-Joo),이동렬(Yi, Dong-Ryul),하재훈(Ha, Jae-Hoon),하민수(Ha, Min-Soo),전찬목(Jeon, Chan-Mok),양승무(Yang, Seung-Mu) 대한건축학회 2018 대한건축학회 학술발표대회 논문집 Vol.38 No.1

In this study, the fire resistant panels was constructed and tested to prevent the spalling of high strength concrete using blast furnace slag and fiber(pp&steel). Fire resistance performance of the fire resistant panel was evaluated. In Specimen BSS-F, spalling phenomenon occurred, and the steel temperature rose to 600 degrees. No spalling occurred in the specimen using the fire resistant panel, and the temperature of the reinforcing bars was not displayed high.