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고도 근시에서 부분 결합 간섭계를 이용한 인공수정체 도수 계측의 정확성
전루민,강수연,김병엽,Roo Min Jun,Soo Yeon Kang,Byoung Yeop Kim 대한안과학회 2008 대한안과학회지 Vol.49 No.11
Purpose: To investigate the accuracy of biometry and intraocular lens (IOL) power calculation using partial coherence interferometry (IOL Master®) in highly myopic patients with axial lengths of 26 mm or greater. Methods: Patients with axial lengths equal to or greater than 26 mm who had undergone cataract surgery were enrolled. IOL power was calculated using IOL Master and/or applanation ultrasonography with the SRK/T formula. Twenty-seven eyes using both IOL Master and applanation ultrasonography were included in a paired group, and forty-eight eyes using the IOL Master only and twenty-five eyes using applanation ultrasonography only were included in unpaired groups. The differences between the predicted refraction and the actual refraction were compared and analyzed. Results: In the paired study, the axial lengths in patients using IOL Master (29.14±2.32 mm) were significantly longer than those of patients using applanation ultrasonography (28.57±2.23 mm) (p<0.05). The mean absolute error (MAE) of the IOL Master and applanation ultrasonography groups were 0.62±0.58D and 0.87±0.49D, respectively (p>0.05). In the unpaired study, the MAEs of the IOL Master and applanation ultrasonography groups were 0.61±0.61D and 0.65±0.63D, respectively. Conclusions: In eyes with axial lengths of 26.0 mm or greater, the accuracy of IOL power calculation with IOL Master using the SRK/T formula was comparable to that with applanation ultrasonography. J Korean Ophthalmol Soc 2008;49(11):1746-1751
박종혁,전루민,Jong Hyuk Park,Roo Min Jun 대한안과학회 2014 대한안과학회지 Vol.55 No.4
Purpose: To report the case of an isolated abscess in an extraocular muscle. Case summary: We report a case of an isolated abscess in an extraocular muscle in a patient who was treated with systemic chemotherapy for precursor B lymphoblastic leukemia. A 54-year-old female who had undergone systemic chemotherapy for precursor B lymphoblastic leukemia presented with right ocular pain and limited eye movements. On ophthalmic examination, she had elevated intraocular pressure (IOP) and limited upward and downward gaze. MRI (magnetic resonance imaging) examination revealed an isolated abscess in right inferior rectus muscle. Although the patient was treated with empirical intravenous antibiotics and IOP-lowering agents, the size of the abscess increased, as confirmed by MRI findings. Therefore, we performed a pus drainage procedure by the transconjunctival approach. We were not able to find any residual abscess lesions on CT scans 3 months postoperatively. The patient's ocular pain disappeared and the limited eye movements improved significantly 6 months postoperatively. Conclusions: There have been no case reports of an isolated abscess in an extraocular muscle in Korea. For immunocompromised patients unresponsive to systemic empirical antibiotic treatment, an early pus drainage procedure by the transconjunctival approach may be a useful and effective therapeutic method in the management of an idiopathic isolated abscess in an extraocular muscle. J Korean Ophthalmol Soc 2014;55(4):616-622
김성언,전루민,이수영,최규룡,Seong-Eon Kim,Roo-Min Jun,Soo-Young Lee,Kyu-Ryong Choi 대한안과학회 2005 대한안과학회지 Vol.46 No.5
Purpose: To reconstruct a cultured conjunctival equivalent that closely resembles normal conjunctival epithelium in three-dimensional culture systems. Methods: Human conjunctival epithelial cells were cultured on dead de-epidermized dermis in the air-exposed state. After 2 weeks of culture, the sections were stained with hematoxylin and eosin. Immunohistochemical and electron microscopic studies were performed. The results were compared with those of normal conjunctiva and cultured eyelid skin equivalent. Results: In the cultured conjunctival equivalent, nonkeratinizing stratified epithelium was formed similarly to normal conjunctival epithelium. Keratin 13 was expressed, but not keratin 10, in the cultured conjunctival equivalent, similarly to normal conjunctival epithelium. However, in the cultured eyelid skin equivalent, keratinizing stratified epithelium was formed. In addition, keratin 10 was expressed, but not keratin 13, contrary to those of the cultured conjunctival equivalent. In the cultured conjunctival equivalent, ultrastructurally, keratin intermediate filaments and desmosomes were found. In addition, microvilli were seen in the uppermost epithelial cells. Conclusions: These findings demonstrate that the cultured conjunctival equivalent resembles normal conjunctival epithelium morphologically, biochemically and ultrastructurally, thereby suggesting that the cultured conjunctival equivalent may have a great potential in the study of conjunctival epithelium.
초기 정상안압녹내장과 초기 원발개방각녹내장의 망막신경섬유층 두께 비교
문선경,전루민,최규룡,Sun-Kyung Moon,Roo-Min Jun,Kyu-Ryong Choi 대한안과학회 2010 대한안과학회지 Vol.51 No.2
Purpose: To investigate the comparison of retinal nerve fiber layer (RNFL) thickness parameters measured by optical coherence tomography (Stratus OCT 3000TM) and visual field indices in early normal-tension glaucoma (NTG) and early primary open-angle glaucoma (POAG). Methods: Sixty-one early normal-tension glaucomatous eyes, 21 early primary open-angle glaucomatous eyes and 34 healthy control eyes were enrolled in this cross-sectional study. Each subject received a visual field test (Humphrey C30-2) and the fast RNFL thickness algorithm test by OCT. The correlations between RNFL thickness and visual field indices were analyzed. The sensitivity and specificity for the detection of early glaucoma were determined with the area under the receiver operating characteristics curve (AUROC). Results: All RNFL thickness values except for the temporal quadrant RNFL thickness were significantly decreased in the early NTG and POAG groups (p<0.05). In early POAG, the average and superior quadrant RNFL thicknesses were significantly thinner than in the early NTG group. Significant correlations were observed between the PSD and the average and superior quadrant RNFL thicknesses in the early NTG and POAG groups (p<0.05). The average RNFL thickness for early glaucoma had the widest AUROC among all of the parameters. Conclusions: In the early NTG group with visual field defects similar to those of early POAG, RNFL defects measured by OCT were less severe, particularly in the average and superior quadrant RNFLs. J Korean Ophthalmol Soc 2010;51(2):248-253
Ocular Response Analyzer의 재현성 및 골드만압평안압, 비접촉안압과의 비교
조가은,전루민,최규룡.Ga Eun Cho. MD. Roo Min Jun. MD. PhD. Kyu-Ryong Choi. MD. PhD 대한안과학회 2012 대한안과학회지 Vol.53 No.9
Purpose: To evaluate the inter- and intra-observer variability of ocular response analyzer (ORA) measurements, and to evaluate the relationships among the intraocular pressures (IOPs) obtained by ORA, Goldmann applanation tonometer (GAT) and non-contact tonometer (NCT). Methods: The present study included 45 normal eyes from 45 volunteers. Three masked observers performed ORA measurements. NCT and GAT measurements were performed by one independent observer. The reproducibility of ORA was assessed by ANOVA-based intraclass correlation coefficient (ICC) and coefficient of variation (CV). Comparison among the tonometers was performed using the Bland-Altman plot and paired t-test. Results: The ICC for inter-observer reproducibility of ORA parameters was 0.90 to 0.97. The corresponding CV values were 13.2% to 19.1%. The intra-observer ICC values for IOP cc were 0.78 to 0.88. CV was 11.2% to 16.8%. For CRF, ICC values were 0.80 to 0.84 with CV values as 11.6% to 15.9%. For CH, ICC values were 0.74 to 0.82 and CV values were 13.0% to 15.9%. The difference in mean IOP values between IOP cc and IOP g was statistically significant (p = 0.04). However, no difference was found among other tonometers, and only IOP cc did not result in significant correlation with central corneal thickness (CCT) (p = 0.38). Conclusions: The intra- and inter-observer reproducibility was substantial for IOP cc, IOP g, CH and CRF, for all observers. Additionally, IOP measured with ORA did not result in significant differences from GAT and NCT. J Korean Ophthalmol Soc 2012;53(9):1311-1317