Dong Gyu Choi

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AIMS To assess calcarine activation with functional magnetic resonance imaging (fMRI) in patients with anisometropic and strabismic amblyopia. METHODS 14 amblyopes (eight anisometropic and six strabismic) were studied with fMRI using stimuli of checkerboards of various checker sizes and temporal frequencies. While T2* weighted MRI were obtained every 3(More)
BACKGROUND The effects of amblyopia on the glucose metabolism in the visual cortex in the resting state are evaluated, the asymmetry of glucose metabolism in the ipsilateral and the contralateral occipital lobes was examined by comparing the number of hypometabolic pixels in both occipital lobes, and the correlation between this asymmetry and the results of(More)
BACKGROUND The surgical results for intermittent exotropia of the convergence insufficiency type have been reported to be of varying success. The purpose of this study is to evaluate the surgical results of medial rectus muscle (MR) resection(s) with adjustable suture for this condition. METHODS Twenty-one consecutive patients with intermittent exotropia(More)
PURPOSE To compare intraocular pressure (IOP) among rebound, noncontact, and Goldmann applanation tonometry (GAT) and their relationships to central corneal thickness in children. DESIGN Diagnostic protocol comparison and evaluation. METHODS In right eyes of 419 children, mean IOP, rates of successful measurement with 3 tonometries, and intermethod(More)
When the oculomotor nerve is completely paralyzed, the affected eye shows severe outward displacement and poor cosmetic appearance. Past results of many surgical procedures for oculomotor palsy have been generally unsatisfactory. We tried a new surgical approach experimentally, in which the disinserted lateral rectus muscle was used as an adductor by medial(More)
Overaction of the inferior oblique(IO) muscle is manifested by elevation of the adducted eye and from the clinical point of view there are two types of overaction. The primary type is of unknown cause, whereas the secondary type is usually related to the palsy of the ipsilateral superior oblique or contralateral superior rectus. An ultrastructural study on(More)
Uveitis can be classified in a variety of ways and this fact makes it difficult to compare results. Therefore we classified uveitis by the location with the method of Henderly; anterior-, posterior-, intermediate- and panuveitis. We determined the frequency of occurrence, etiology and clinical characteristics of various forms of uveitis. We conducted a(More)
PURPOSE To investigate whether ethanol administration disturbs the tear film and ocular surface. DESIGN Case-control study. PARTICIPANTS Twenty healthy male subjects were recruited. Ethanol was administered to 10 subjects and another 10 subjects served as controls. METHODS Twenty healthy male subjects with no ocular disease were recruited. Ethanol(More)
BACKGROUND To analyse the incidence and factors associated with the onset of consecutive esotropia after surgery for intermittent exotropia, and to investigate its clinical course. METHODS We retrospectively reviewed the medical records of 526 patients who had undergone exotropia surgery. We evaluated the risk factors for consecutive esotropia, defined as(More)
BACKGROUND The purpose of this study was to compare surgical outcomes of unilateral lateral rectus recession (ULR) and unilateral recess-resect (RR) for intermittent exotropia of 20-25 prism diopters (PD). METHODS In this retrospective study, ULR was performed on 82 patients and RR on 98 patients for the treatment of intermittent exotropia of 20-25 PD(More)