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이동섭,김준모,우경인,장혜란,Dong Sub Lee,Joon Mo Kim,Kyung In Woo,Hae Ran Chang 대한안과학회 2006 대한안과학회지 Vol.47 No.9
Purpose: To determine postoperative astigmatic changes after surgery for congenital ptosis and the astigmatic changes depending on surgical method and to discern cases of postoperatively developed anisometropia or amblyopia. Methods: Fifty-one patients who underwent surgery due to congenital ptosis were reviewed. Refraction or cycloplegic refraction was conducted preoperatively and 3 to 6 months after surgery to measure astigmatic changes. Astigmatic changes in operated eyes were compared to control eyes. Astigmatic changes were compared depending on surgical method. Results: The mean astigmatism was 1.33±1.29D preoperatively and 1.48±1.13D postoperatively (P=0.10) and the mean astigmatic change in the ptotic and control eye was an increase in cylinder +0.56±0.55D and +0.68±0.72D (P=0.37). The mean astigmatic change of patients receiving frontalis sling was +0.57±0.67D which was similar to those who received levator resection (+0.56±0.50D). Newly developed anisometropia was found in three patients postoperatively due to an increase in astigmatism, but newly developed amblyopia was not found. Conclusions: The increase of astigmatism by ptosis surgery was not statistically significant and there was no statistically significant difference when accounting for surgical method. However, it is necessary to monitor refractive error carefully in younger patients to prevent amblyopia because postoperative increase of astigmatism can cause anisometropia.
가림치료 중 우세안의 시력이 약시안보다 낮아진 환자들의 임상양상
박상훈,장혜란.Sang Hoon Park. MD. Hae Ran Chang. MD. PhD 대한안과학회 2010 대한안과학회지 Vol.51 No.10
Purpose: To investigate the clinical features of patients with decreased visual acuity (VA) of the dominant eye as compared to that of the amblyopic eye during occlusion therapy. Methods: The authors analyzed clinical features of 28 patients with VA reversed between the two eyes during occlusion therapy among 500 patients treated with occlusion therapy under the diagnosis of monocular amblyopia, Results: Twenty-one patients with strabismic amblyopia (SA), five patients with anisometropic amblyopia (AA) and two patients with combined amblyopia (CA) were enrolled in the present study. Decreased VA of the dominant eye as compared to that of the amblyopic eye occurred 66.75 ± 83.63 weeks after the onset of occlusion therapy. Reversion of VA between both eyes occurred during amblyopia treatment in 17 patients and during maintenance therapy in 11 patients. The reversed VA was recovered in all patients. The mean duration (MD) of reversed VA was 15.00 ± 24.43 weeks, and the number of clinic visits (CV) was 4.68 ± 8.65. In five patients, the MD of reversed VA (59.80 ± 30.14 weeks, p = 0.016) and the number of CVs (18.40 ± 14.48, p < 0.001) were significantly longer than those of the other 23 patients (MD of reversed VA: 5.78 ± 4.04 weeks, number of CV: 1.70 ± 1.22); those five patients had low compliances and SAs. Conclusions: Visual acuity was recovered in all patients with decreased VA of the dominant eye as compared to that of the amblyopic eye during occlusion therapy, rapid recovery was observed in most patients except in several patients with low compliance. J Korean Ophthalmol Soc 2010;51(10):1374-1379
단안약시 환자에서 성공적인 가림치료 종료 후 장기적인 시기능
이준용,장혜란.Jun Yong Lee. MD. Hae Ran Chang. MD 대한안과학회 2010 대한안과학회지 Vol.51 No.11
Purpose: To evaluate a long-term visual outcome following cessation of occlusion therapy in unilateral amblyopia. Methods: A total of 70 patients who successfully finished occlusion therapy (including maintenance therapy) for unilateral amblyopia and were followed up for at least 1 year after cessation of occlusion were retrospectively reviewed. Even after the success of occlusion therapy, maintenance therapy or regular examinations were performed until the visual development of the normal fellow eye (NE) was completed. The recurrence of amblyopia was defined as a 2 or more logarithm of the minimum angle of resolution (LogMAR) levels of visual acuity (VA) reduction of the amblyopic eye (AE), as compared to the NE, at the last evaluation. Results: Amblyopia was associated with strabismus in 19 patients, anisometropia in 33 patients, and both in 39 patients. The mean age at the cessation of occlusion and at the last evaluation was 7.7 ± 1.9 years and 11.4 ± 2.9 years, respectively. The mean VA of the AE was 0.01 ± 0.03 and mean stereopsis was 101.7 ± 87.5 seconds of arc at the cessation of occlusion, and both improved at the last evaluation. However, the improvement of mean VA of the AE was not statistically significant (p = 0.21). The mean duration of maintenance therapy was 25.6 ± 21.0 months, and was 3 times longer than the duration required to achieve success in the treatment of amblyopia. At the last evaluation, the recurrence of amblyopia was not found, while 3 patients (4.3%) lost 1 LogMAR level of VA in the AE, as compared to the NE. Conclusions: Visual outcome following successful cessation of occlusion therapy for unilateral amblyopia was favorable without recurrence of amblyopia. J Korean Ophthalmol Soc 2010;51(11):1499-1503
재건되지 않았던 눈물소관 열상 환자에서 지연된 눈물소관 성형술의 효과
이동섭,우경인,장혜란,Dong Sub Lee,Kyung In Woo,Hae Ran Chang 대한안과학회 2006 대한안과학회지 Vol.47 No.7
Purpose: Conjunctivodacryocystorhinostomy with a Jones tube has been the standard treatment for canalicular obstruction secondary to unrepaired canalicular laceration. We sought to evaluate the efficacy of delayed canaliculoplasty with bicanalicular silicone intubation for patients whose canaliculi were not repaired by initial surgery. Methods: We retrospectively studied the medical records of 4 patients who had bicanalicular obstruction from previous unrepaired canalicular laceration. After careful dissection through the scarred medial canthal region, canaliculoplasty with bicanalicular silicone intubation was performed. The time interval from initial trauma to canaliculoplasty was between 5 months and 10 years. Follow-up periods ranged from 3 weeks to 13 months. Results: All of the canaliculi were reanastmosed. Epiphora disappeared in two, occurred intermittently in one, and persisted in the last at 3 weeks postoperatively. Conclusions: Delayed canaliculoplasty was functionally effective in three out of four patients. Even though canalicular reconstruction was delayed for a long time, attempting canalicular reconstruction would be recommendable before considering conjunctivodacryocystorhinostomy with a Jones tube.