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백혜정,임현택,Hae Jung Paik,MD,PhD,Hyun Taek Lim,MD 대한안과학회 2012 대한안과학회지 Vol.53 No.12
Purpose: Accommodation and convergence, the main factors of near vision complex on near vision associated with miosis are essential ocular movements for binocularity. Therefore, we attempted to find appropriate treatments for anomalies of accommodation and convergence. Methods: The basic theories and anomalies of accommodation and convergence were reviewed. Various treatment modalities for anomalies of convergence were discussed and treatment guidelines were proposed. Results: Anomalies of convergence were classified into convergence insufficiency, convergence insufficiency associated with accommodative insufficiency, convergence paralysis, convergence spasm, and convergence excess. Treatment was divided into non-surgical and surgical methods which include not only vision therapy and optical treatment using a prism after cycloplegic refraction, but also rectus muscle surgery. Conclusions: The choice of effective treatments according to various causes is necessary for anomalies of accommodation and convergence through complete eye examinations. Thus, not only simple refractive error measurement and glasses prescription for best corrected visual acuity are necessary, but also active treatment by fundamental ophthalmic and neurologic evaluation in hospitals.
하사근 후전술, 전치술 및 절제술의 하사근기능항진 교정 효과 비교
백혜정,최진석.Hae Jung Paik. M.D.. Jin Seok Choi. M.D. 대한안과학회 2006 대한안과학회지 Vol.47 No.4
Purpose: To compare the clinical outcomes of recession, anterior transposition, and myectomy of overacting inferior oblique (IO) muscles. Methods: A total of 69 patients, (92 eyes) who underwent recession (38 eyes), anterior transposition (25 eyes), or myectomy (29 eyes) for overacting IO muscles in one or both eyes, were evaluated retrospectively with a follow-up period of 12.8 months (3~60 months). Results: We applied a grading system with a 5-point scale to the IO muscle. (0 to 4 for IO muscle overaction and 0 to 4 for IO underaction) The average preoperative IOOA was +2.13±0.94 in recession, +2.35±0.88 in anterior transposition, and +2.04±0.81 in myectomy. These were reduced to +2.04±0.81, +2.35±0.88, and 0.02±0.23 respectively. The average preoperative and postoperative hyperdeviation in primary gaze was 10.25±4.54PD to 2.37±0.98PD in recession, 9.02±4.53PD to 3.64±1.23PD in anterior transposition, and 7.25±3.21PD to 0.67±0.51PD in myectomy. Conclusions: Recession, anterior transposition, and myectomy of the IO muscles were all effective in IOOA and hyperdeviation, and showed continuing drift towards orthotropia.
백혜정,손희진,Hae Jung Paik,Hee Jin Sohn 대한안과학회 2006 대한안과학회지 Vol.47 No.3
Purpose: To determine the result of early surgery for intermittent exotropia for children under 4 year old and the factors which affect it. Methods: The study subjects consisted of 25 children younger than 4 years who had received surgery for intermittent Exotropia. They were followed up for more than 1 year after surgery by the Department of Ophthalmology of the Gachon Medical School, between July 1998 and December 2003. The interval from onset to initial surgery, preoperative deviation angle, dissociated vertical deviation, stereopsis, preoperative patching, type of surgery, and initial postoperative deviation angle were compared and analyzed in a retrospective manner. Results: The average age of the subjects and the preoperative deviation angle were 3.2 years and 28.67±8.08PD respectively. The average deviation angle at postoperative year 1 was 5.60±8.69PD. Out of the 25 patients, 19 (76%) showed a deviation angle less than 10PD were and 4 (16%) had recurrence of exotropia. Consecutive esotropia occurred in 2 (8%). The clinical factor statistically related to results was the initial postoperative deviation angle. The group who had esophoria of more than 10 PD (18.27±6.18 PD) showed 93% orthophoria at postoperative year 1, which was statistically significant. Conclusions: Though a patient be under 4 years old, if their deviation angle is in progress or if non-surgical treatment is ineffective in the case when surgery is delayed, it is presumed that performing surgery at postoperative day 1 with an overcorrection of about 10 PD is preferred.