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양측성 해리수직편위에서 일률적인 9 mm, 7 mm 양안 상직근 후전술 시행의 효과
윤이나,라상훈,이종혁,Ie-Na Yoon,Sang-Hoon Rah,Jong-Hyuck Lee 대한안과학회 2005 대한안과학회지 Vol.46 No.6
Purpose: To evaluate the effect of 9 mm and 7 mm bilateral recession of the superior rectus muscle in patients with bilateral dissociated vertical deviation (DVD) who had a deviation difference between the non-fixing and fixing eyes of less than 8PD. Methods: The subjects were chosen from the patients who visited our hospital for DVD between January 2001 and November 2003. We reviewed the surgical records of 19 patients who had undergone 9 mm recession of superior rectus muscle in the non-fixing eye and 7 mm in fixing eye, and who had been followed up for at least 6 months. Results: A residual DVD less than 8PD was regarded as successful. The overall success rate was 73.7%. The success rate of 10~14PD preoperative deviation of the non-fixing eye was 80.0%, and that of 15~19PD preoperative deviation of the non-fixing eye was 75.0%. However, the success rate was 66.7% in recession for the deviation over 20PD. Conclusions: Bilateral recession of 9 mm and 7 mm of the superior rectus muscle was effective for bilateral DVD in which the deviation difference of the non-fixing eye and fixing eyes was less than 8PD .
이종혁,라상훈,김윤희,송원석,Lee, Jong Hyuck,Rah, Sang Hoon,Kim, Yoon Hee,Song, Won Seok 대한소아청소년과학회 2002 Clinical and Experimental Pediatrics (CEP) Vol.45 No.6
1개월 동안의 양안 이물감 및 소양감을 주소로 내원한 2세 된 남아의 양안 상, 하안검 첩모에서 세극등 검사상 사면발이의 성충과 충란을 관찰 후 확진 하였다. 치료로 충란과 성충의 직접제거 및 첩모제거술, 20% fluorescein dye 도포와 세척을 시행하였고 광학현미경과 주사전자현미경으로 충란과 성충을 관찰하였다. 1주 간격으로 1달간 추적관찰 하였고 세극등검사상 양안의 안검과 첩모에서 성충 또는 충란이 발견되지 않아 완치 판정을 내렸다. 본 증례를 문헌 고찰과 함께 보고하는 바이다. A two year old male child complained of foreign body sensations bilaterally, and an itching sensation at both upper and lower eyelids for 2 months of duration. He was diagnosed with Phthiriasis palpebrarum after observation of adult louse and nits on slit-lamp examination. The treatment was accomplished by mechanical removal of the lices and nits by forceps and scissors, and then irrigation with 20% fluorescein was done under general anesthesia. Antibiotic eyedrops and ointment were applied to both eyes. The morphologic evaluation was performed with light microscopy and scanning electron microscopy. The follow-up interval was every weeks for one month and no louse or nit was found under slit-lamp examination. So we concluded that the Phthiriasis palpebrarum was eradiated completely. We report a case of Phthriasis palpebrarum had been review of the literatures.
조한주,라상훈,Han-Joo Cho,Sang-Hoon Rah 대한안과학회 2005 대한안과학회지 Vol.46 No.11
Purpose: To identify the characteristics of adult patients who develop acute concomitant esotropia during adulthood. Methods: Using a retrospective noncomparative method, this study evaluated the medical charts of 10 adults who were diagnosed with acute onset esotropia between January 2003 and May 2005. All patients presented the symptoms of estotropia when they were older than age 18. All patients in the study group had no previous ocular history, no cause of interruption of fusion, no history of systemic disease or head trauma, and no abnormal findings on neurologic examination. Results: The average follow-up period was 10.8 months (range, 5~17 months). The mean age was 44.7 years (range, 18~62 years). The average refractive error was -1.43 diopter (range, -5.50~+0.50 diopter). An operation was performed in one case. The prism diopter decreased according to follow-up in other patients. Conclusions: There are characteristics of acute onset esotropia of adulthood that differentiate it from existing esotropia. Almost all patients were myopic, showed nearly the same prism diopter between near and far vision, and deviation improved with follow-up.
상사시에서 수직근 후전술 후 사시각의 변화에 대한 고찰
이윤하,라상훈,Yun Ha Lee,Sang Hoon Rah 대한안과학회 2012 대한안과학회지 Vol.53 No.7
Purpose: To determine the extent of vertical rectus muscle correction in hypertropia showing good prognosis. Methods: A retrospective study was performed with a total of 16 patients who underwent superior or inferior rectus muscle recession surgery with a follow-up of more than 6 months. Vertical muscle recession of 1 mm per 2.5 to 3.0 prism diopters was performed according to the surgeon's discretion. Results: At 1 week after surgical correction, undercorrection, orthophoria, and overcorrection was observed in 4, 7 and 5 cases, respectively. At the final examination, ocular deviation was decreased in the undercorrected cases and maintained orthophoric except in 1 case where only a small amount of deviation recurred. However, in the cases of postoperative overcorrectionn, ocular deviation increased; 2 cases required surgical correction for consecutive hypertropia. Conclusions: When performing vertical rectus muscle recession in primary hypertropia, the amount of correction for orthophoria or undercorrection should be determined. J Korean Ophthalmol Soc 2012;53(7):1011-1015
간헐외사시에서 외직근후전술 시 술 후 외편위로의 회귀: 동반된 수술 방법에 따른 비교
김진우,이종혁,라상훈,Jin Woo Kim,Jong Hyuck Lee,Sang Hoon Rah 대한안과학회 2011 대한안과학회지 Vol.52 No.11
Purpose: To assess the difference in the change of postoperative ocular alignment in intermittent exotropia corrected by horizontal muscle transposition or inferior oblique muscle recession together with lateral rectus muscle recession. Methods: A total of 110 patients with intermittent exotropia with a follow-up period of more than 6 months after lateral rectus muscle recession were enrolled in the present study. The patients who received lateral rectus muscle recession only were classified as group 1, patients who received both lateral rectus muscle recession and horizontal muscle vertical transposition in both eyes were classified as group 2, and patients who underwent lateral rectus muscle and inferior oblique muscle recession were classified as group 3. The differences in postoperative ocular alignment among the patient groups were compared. Results: Among the 3 groups, group 2 demonstrated the smallest amount of esotropic deviation in mean postoperative ocular alignment measured 1 day and 1 month after surgery. There was no significant difference among the groups in the mean postoperative ocular alignment and mean amount of exotropic drift at 6 months. The difference in the amount of postoperative exotropic drift 1 year after surgery among the 3 groups was statistically significant. The largest amount of postoperative exotropic drift was observed in group 1. Conclusions: In correcting intermittent exotropia, the largest amount of postoperative exotropic drift was observed in patients who received only lateral rectus muscle recession. By contrast, the smallest amount of postoperative exotropic drift was observed in patients who received lateral rectus muscle recession with vertical transposition of the horizontal muscle. J Korean Ophthalmol Soc 2011;52(11):1326-1330