단순 열공성 망막박리의 일차수술 실패 요인에 대한 연구

이마빈,문찬식,양홍석,유호민,MarVin Lee,M,D,Chan-Shik Moon,M,D,Hongseok Yang,M,D,Ho Min Lew,M,D 대한안과학회 2006 대한안과학회지 Vol.47 No.3

Purpose: This study analyzes the factors influencing anatomical failure of the primary operation for simple rhegmatogenous retinal detachment. Methods: The patients in this study were diagnosed with simple rhegmatogenous retinal detachment and operated on by a single physician. The success group comprised 251 eyes and the failure group comprised 29 eyes. The factors analyzed between the two groups were the type of primary procedure, the type of retinal defect; the numbers of retinal defects; the extent of retinal detachment; the duration of retinal detachment; the existence of peripheral degeneration; carrying out of subretinal fluid drainage; the type of tamponade material used and the position of retinal defects. Results: The anatomical success rate of the primary operation for simple rhegmatogenous retinal detachment was 89.64%. Patient sex, the type of tamponade material used and the position of the retinal defect showed significant differences between the success and failure groups. There was a higher percentage of male patients in the failure group than in success group (p=0.034). Silicone oil used as the tamponade material resulted in a greater chance of failure than success (p=0.017). Analysis of the position of the retinal defect showed that, defects distributed in the inferior retina or through multiple area led to a greater likelihood of anatomical failure (p=0.036). Conclusions: Due ti the greater possibility of anatomical failure of the primary operation when retinal defects are distributed in the inferior retina or through multiple area, clinicians should consider intensive treatment for such cases.

부등시 교정렌즈가 부등상시 및 양안시 기능에 미치는 영향

이마빈,양홍석,유호민,이종복,장윤희,MarVin Lee,Hong-Seok Yang,Ho Min Lew,Jong-Bok Lee,Yoon-Hee Chang 대한안과학회 2005 대한안과학회지 Vol.46 No.7

Purpose: To study the effect of the corrective lens for anisometropia on aniseikonia and binocular function. Methods: The study subjects were 30 patients without strabismus and amblyopia, who had anisometropia of more than 1.00D between the spherical equivalent of each correction lens. The amount of aniseikonia was measured by Awaya`s New Aniseikonia Test. The degree of stereopsis and fusion were determined with Titmus Stereo Test and fusion card of major amblyoscope, respectively. Results: The amount of aniseikonia increased significantly with increasing level of anisometropia (p=0.000). There was a statistically significant correlation between the amount of anisometropia and fusion (p=0.046). With increased aniseikonia, the stereopsis declined consequently, but the decline was not statistically significant. Aniseikonia was induced when there was more than 2.00D of anisometropia. With anisometropia increased by 1.00D, the odds ratio of induced aniseikonia was 7.197 (p=0.047). Conclusions: Anisometropia is an important factor for aniseikonia and can disturb binocular function.

Design English : The Study and Application of International Design Presentation and Issues

이마빈(Lee Marvin) 한국디자인학회 2007 한국디자인학회 학술발표대회 논문집 Vol.- No.-

The Use of Multimedia to Express the Implications of War on Identity

이마빈(Lee Marvin) 한국디자인학회 2006 한국디자인학회 학술발표대회 논문집 Vol.- No.-

구면렌즈로 유발된 부등상시가 양안시 기능에 미치는 영향

유영주 ( Yu Yeong Ju ) , 이마빈 ( Lee Ma Bin ) , 유호민 ( Yu Ho Min ) , 이종복 ( Lee Jong Bog ) , 장윤희 ( Jang Yun Hui ) 대한안과학회 2004 대한안과학회지 Vol.45 No.1

정상인과 녹내장 환자에서 수술 전 안구 계측치와 백내장 수술 후 안압 하강과의 관계

박수연,이마빈,안재홍,Suyoun Park,Marvin Lee,Jaehong Ahn 대한안과학회 2012 대한안과학회지 Vol.53 No.1

Purpose: To investigate the relationships between preoperative factors and intraocular pressure (IOP) reduction after phacoemulsification in normal, open-angle glaucoma (OAG) and angle-closure glaucoma (ACG) patients. Methods: IOP was measured before and 3 months after cataract surgery in 30 normal, 24 OAG and 31 ACG patients. The relationship between IOP reduction after cataract surgery and preoperative parameters including anterior chamber depth (ACD), axial length (AL), preoperative IOP/ACD ratio (PD ratio), preoperative IOP/AL ratio (PL ratio) were investigated in the 3 groups. Results: Significant IOP reduction was observed in all 3 groups after surgery (paired sample t-test; p < 0.05), and IOP reduction was correlated with preoperative IOP level in all 3 groups (Pearson’s correlation; p < 0.05). Other preoperative parameters such as ACD and AL were not correlated with IOP reduction, and PD ratio was significantly correlated with IOP reduction only in the OAG group (Pearson’s correlation; p < 0.001). PL ratio was significantly correlated with IOP reduction in all 3 groups (Pearson’s correlation; p < 0.05) and showed the best sensitivity and specificity to predict significant reduction in IOP after cataract surgery among parameters including preoperative IOP, PD ratio and PL ratio. Conclusions: PL ratio was significantly correlated with IOP reduction after cataract surgery in all 3 groups and showed a higher predictive value for IOP reduction in the OAG group than in the other groups. J Korean Ophthalmol Soc 2012;53(1):111-119

도졸라미드-티몰롤 복합제제와 라타노프로스트 점안 전후의 안압과 안구박동크기 변화의 비교

장세란,이마빈,안재홍 대한안과학회 2014 대한안과학회지 Vol.55 No.6

Purpose: To compare dorzolamide-timolol fixed combination (DTFC) and latanoprost with regard to their effects on intraocular pressure (IOP) and ocular pulse amplitude (OPA). Methods: Sixty eyes of 60 patients with open angle glaucoma or glaucoma suspect were included in the present study. Patients were divided into 2 groups, DTFC-treated (n = 30) and latanoprost-treated (n = 30). IOP and OPA were measured with dynamic contour tonometer (DCT) and Goldmann applanation tonometer (GAT), before and at least 1 month after treatment. Results: GAT IOP, DCT IOP and OPA decreased by 2.25 ± 2.23 mm Hg, 1.97 ± 2.06 mm Hg, and 0.14 ± 0.88 mm Hg, respectively in the DTFC-treated group. In the latanoprost-treated group, GAT IOP, DCT IOP and OPA was reduced by 2.74 ± 2.96 mm Hg, 2.06 ± 3.50 mm Hg, and 0.69 ± 1.07 mm Hg, respectively. There was no significant difference (p = 0.311) in the decline of IOP between the 2 groups, but OPA of the DTFC-treated group decreased less than the latanoprost-treated group (p = 0.032). Conclusions: No significant differences were observed in the short-term decline of IOP between the 2 medications. However, the influence of DTFC on OPA appeared negligible in the latanoprost-treated group. J Korean Ophthalmol Soc 2014;55(6):854-859

시신경입체사진으로 측정한 시신경유두주위위축 넓이의 재현성과 녹내장안 진단의 유용성

윤일석,이마빈,Il Suk Yun,Mar Vin Lee 대한안과학회 2014 대한안과학회지 Vol.55 No.4

Purpose: To investigate the measurement repeatability of peripapillary atrophy (PPA) parameters obtained by optic disc stereophotography (ODP) and evaluate the usefulness of PPA parameters to differentiate open-angle glaucoma (OAG) from normal eyes in patients with PPA. Methods: Sixty-five eyes of 65 patients with PPA were examined. Disc area, cup area, rim area, vertical cup to disc (CD) ratio, CD area ratio, PPA area, zone beta (β) area and zone alpha (α) area were obtained by ODP using intrinsic algorithms. The area under the receivers operating characteristic (AUROC) curves was used to compare the PPA parameters with that of the disc parameters to differentiate OAG from normal eyes. Two examiners analyzed PPA parameters to confirm reproducibility and repeatability of ODP. Results: Vertical CD ratio (VCD), area CD ratio, zone β area, zone β area per PPA area, zone β area per disc area and axial length were significantly larger in OAG patients (<em>p</em> < 0.05). Among PPA parameters, zone β area per PPA area was strongly correlated with MD (r = -0.431) and PSD (r = 0.411). In addition, PPA (area) to disc area ratio showed the best diagnostic ability (AUROC curve value of 0.786) when comparing the OAG group to the normal group. PPA area and zone β area obtained by ODP showed good reproducibility and repeatability (ICC > 0.997). Conclusions: The PPA measurement obtained by ODP has good reproducibility and consistency and can be a useful tool in monitoring PPA changes in glaucoma patients. J Korean Ophthalmol Soc 2014;55(4):570-577

백내장 수술이 안구박동크기에 미치는 영향

김민호,양홍석,이마빈,안재홍.Min Ho Kim. MD. Hong Seok Yang. MD. PhD. Mar Vin Lee. MD. Jae Hong Ahn. PhD 대한안과학회 2012 대한안과학회지 Vol.53 No.12

Purpose: To investigate the change of intraocular pressure (IOP) and ocular pulse amplitude (OPA) measured by dynamic contour tonometry (DCT) after cataract surgery and to identify the influencing factors related with OPA change after cataract extraction. Methods: The present study included 32 patients who underwent unilateral cataract surgery and the non-operated fellow eyes were used as control. IOP was measured by Goldman applanation tonometry (GAT) and Pascal DCT preoperatively, and 3 months postoperatively. Additionally, OPA was measured by Pascal DCT preoperatively, and 3 months postoperatively. Axial length (AL), anterior chamber depth (ACD), and central corneal thickness (CCT) were measured preoperatively. Results: After cataract surgery, IOP by GAT, IOP by DCT, and OPA decreased significantly with a mean decrement of 1.3 mm Hg, 1.6 mm Hg, and 0.5 mm Hg, respectively (p < 0.05). OPA was significantly correlated with IOP by GAT (r = 0.497, p = 0.004) and IOP by DCT (r = 0.421, p = 0.016) preoperatively. OPA was correlated with GAT (r = 0.357, p = 0.045) but not with DCT (r = 0.224, p > 0.05) postoperatively. The most important factor influencing the decrement of IOP by GAT, IOP by DCT, and OPA after cataract surgery was the preoperative level of their measurements (r = 0.382, p < 0.05 in GAT, r = 0.807, p < 0.001 in DCT, r = 0.627, p < 0.001 in OPA). In addition, the OPA decrement after cataract surgery was significantly correlated with age (r = -0.370, p = 0.037), and was not correlated with AL, ACD, and CCT. Conclusions: Both IOP and OPA decreased after cataract surgery, which appears to influence the relationship between IOP and OPA. The correlation between OPA decrement and age may be related to increased ocular rigidity with aging.

시신경유두직경에 대한 유두연-황반오목거리의 비를 이용한 시신경유두 크기 평가의 예측력

유현규,안재홍,이마빈 대한안과학회 2013 대한안과학회지 Vol.54 No.6

Purpose: To investigate the usefulness of the measurement of disc-to-fovea distance to disc-diameter ratio (DF/DD ratio) in detecting large and small discs. Methods: A total of 300 randomly selected subjects were included in the present study. All patients underwent stereoscopic disc photography and DF/DD ratio, which is the shortest distance between disc margin and fovea divided by mean disc diameter was determined by planimetry. The diagnostic accuracy of DF/DD ratio was evaluated using areas under the receiver operating characteristics curves (AUCs), sensitivity, and specificity. Results: No significant differences in disc-to-fovea distance were observed among small and large disc groups. The DF/DD ratio was significantly lower in subjects with large discs (1.74 ± 0.27) compared with subjects with small discs (2.70 ± 0.15). AUCs of the DF/DD ratio were 0.942 and 0.947 in detecting large and small discs, respectively. In detecting disc size by a fixed DF/DD ratio of 2.0, sensitivity was 100% for both large and small discs, and specificity was 70.1% and 40.9% for the large and small discs, respectively. Conclusions: The DF/DD ratio may be a simple and useful clinical aid in detecting large and small discs. The 2.0 fixed DF/DD ratio, showed 100% sensitivity in detecting both large and small discs, although medium discs may be misdiagnosed as small discs more often than as large discs.