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톡소플라스마 망맥락막염에서 유리체강내 클린다마이신 주입술
박수연,유호민,송지훈.Suyoun Park. MD. Ho Min Lew. MD. Ji Hun Song. MD 대한안과학회 2012 대한안과학회지 Vol.53 No.7
Purpose: To present cases of toxoplasmic retinochoroiditis (TRC) treated successfully with intravitreal clindamycin injection. Case summary: (Case 1) A 41-year-old man presented with blurred left eye vision for several months. The patient had a large chorioretinal scar with infiltrations at the boundaries, and fluorescein angiography (FA) showed active retinochoroiditis. Antitoxoplasmosis (antiTX) immunoglobulin G (IgG) was positive, and the patient was started on antiTX medication. Despite several weeks of treatment with maximum doses of antiTx, the TRC progressed and visual acuity worsened. Pars plana vitrectomy (PPV) with intravitreal clindamycin injection (1.0 mg/0.1 ml) was performed, and an additional injection was given 4 weeks later. Six weeks after the second injection, TRC wascompletely resolved with 20/20 vision. (Case 2) A 67-year-old man presented with decreased left eye vision for 1 year. Fundus examinations showed vitreous opacity and epiretinal membranes. The FA revealed retinochoroiditis and the antiTX IgG titer was elevated. The presumed diagnosis was TRC, and oral medications of trimethoprim-sulfamethoxazole, clindamycin, and prednisolone was administered. Inflammation began to improve however, as the patient was not tolerating systemic antiTx medications, an intravitreal injection of clindamycin (1.0 mg/0.1 ml) was administered with PPV. The patientdiscontinued oral medication after surgery, and the inflammation resolved 5 weeks later. Conclusions: Intravitreal clindamycin injections may be an additional treatment option for TRC in patients who are unable to tolerate systemic therapy or whose disease progresses despite systemic therapy. J Korean Ophthalmol Soc 2012;53(7):1046-1052
정유리,양홍석,유호민,이종복,장윤희,Yoo-Ri Chung,Hongseok Yang,Ho Min Lew,Jong Bok Lee,Yoon-Hee Chang 대한안과학회 2008 대한안과학회지 Vol.49 No.8
Purpose: To analyze stereoacuity in patients with strabismus using various stereotests. Methods: Stereoacuity was assessed in children who were diagnosed with intermittent exotropia or refractive accommodative esotropia using the Titmus stereotest, TNO stereotest, and the Lang II stereotest. Patients with amblyopia or previous ocular surgery were excluded. Results: Ninety-four patients with intermittent exotropia and 36 patients with refractive accommodative esotropia were included; the mean age was 7.2 years. The mean stereoacuity in intermittent exotropia was 143.1±207.9 seconds of arc with the Titmus stereotest, 130.2±103.7 seconds of arc with the TNO stereotest, and 200.0±0.0 seconds of arc with the Lang II stereotest. The mean stereoacuity in refractive accommodative esotropia was 430.3±288.6 seconds of arc, 232.5±90.0 seconds of arc, and 230.0±97.9 seconds of arc, respectively. The absence of stereoacuity was more frequent in patients with refractive accommodative esotropia than in patients with intermittent exotropia, and both groups of patients showed the largest proportion of absent stereopsis with the TNO stereotest. No factor was significant for stereopsis in patients with intermittent exotropia and patients with refractive accommodative esotropia. Conclusions: Stereoacuity showed various seconds of arc according to the type of stereotest in the same patient. Patients with refractive accommodative esotropia showed lower stereoacuity in all stereotests than patients with intermittent exotropia. TNO stereotests are sensitive enough to detect the absence of stereopsis in patients with strabismus. J Korean Ophthalmol Soc 49(8):1309-1316, 2008
엑시머레이저 근시교정수술 후 각막지형도상의 광학대와 중심이탈 정도에 대한 연구
최중혁,양홍석,유호민,안재홍,Joong-Hyuk Choi,Hong-Seok Yang,Ho-Min Lew,Jae-Hong Ahn 대한안과학회 2005 대한안과학회지 Vol.46 No.6
Purpose: To identify factors influencing the ablation center and to evaluate the size of the ablation zone after PRK and LASIK using Technolas 217 C. Methods: This study examined the results of refractive surgery using Technolas 217 C Excimer laser with eye tracking system in 69 eyes, of which 31 underwent PRK and 38 LASIK. The ablation zone and degree of decentration were determined through corneal topography. We divided the eyes into two groups according to the degree of decentration: less than 0.5 mm as the first group, and from 0.5 to 1.0 mm as the second. The ablation zone diameter in topography was compared with the programmed preoperative optical zone. Results: The only factor influencing the ablation center in the PRK group was preoperative spherical equivalent(p=0.016), and no factor influenced the ablation zone in the LASIK group. In both groups, the long axis of the ablation zone was longer than that of the programmed optical zone(p=0.003), while the short axis was shorter (p=0.001). Conclusions: After refractive surgery using Technolas 217 C Excimer laser with eye tracking system, there was no clinically significant decentration. With greater preoperative spherical equivalent, more decentered ablation was noted in the PRK group. The topographical long axis of the ablation zone was longer than that of the programmed ablation zone, while the short axis of the ablation zone was shorter. During refractive surgery, we should be aware of the possibility that the short axis of the postoperative ablation zone may be shorter than that of the programmed preoperative optical zone.
유리체절제술 후 시행한 백내장 수술에서 유리체절제술이 인공수정체 도수 결정에 미치는 영향
김의연,안재홍,유호민,양홍석,Eui Yon Kim,M,D,Jae Hong Ahn,M,D,Ho Min Lew,M,D,Hong Seok Yang,M,D 대한안과학회 2008 대한안과학회지 Vol.49 No.11
Purpose: To evaluate the effect of vitrectomy in IOL power calculation for cataract surgery in the eyes that previously performed vitrectomy. Methods: This study comprised 41 eyes of 37consecutive patients who underwent cataract surgery after previous vitrectomy. IOL power calculation with the measurement of axial length and corneal power was conducted before vitrectomy and before cataract surgery. Target refractions at each surgery, assuming that the same power of IOL was implanted, were compared to actual manifest refraction after cataract surgery. Results: There was no statistically significant change in both axial length and corneal power after vitrectomy (p>0.05). Before vitrectomy, target refraction was -0.22±0.61D compared to -0.37±0.52D before cataract surgery. The actual refraction after cataract surgery was -0.47±0.94D, and there were no significant differences among the three refractions (p>0.05). Conclusions: In the eyes that underwent vitrectomy, vitrectomy itself does not have an influence on calculating IOL power for cataract surgery. J Korean Ophthalmol Soc 2008;49(11):1759-1764