Toshimitsu Kasuga

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The ultrasonographic features of 6 histologically proven dermoid and epidermoid cysts in the head and neck are reported. All 6 cysts had internal echoes, with a solid appearance. Five of the 6 were echogenic, with only slight or no posterior echo enhancement. Amorphous keratinous debris from keratinizing stratified squamous epithelium filled the lumen of(More)
PURPOSE To investigate the association between ultrasound energy, expressed as cumulative dissipated energy (CDE), and changes in intraocular pressure (IOP) after uncomplicated cataract surgery by phacoemulsification. METHODS In this prospective study, nonglaucomatous subjects underwent cataract surgery by phacoemulsification. IOP was compared by(More)
OBJECTIVE To evaluate the association between baseline measurements of iris thickness at 3 positions and change in anterior segment biometric parameters after prophylactic laser peripheral iridotomy (LPI). DESIGN Prospective clinical cohort study. PARTICIPANTS Fifty-two eyes of 52 nonglaucomatous subjects with anatomically narrow angles. METHODS(More)
PURPOSE To evaluate the length of the trabecular meshwork (TM) from the scleral spur (SS) to Schwalbe's line (SL) and assess the detectability of the SS in histopathology specimens. METHODS This study included 158 angle images from 79 cross-sectional slides derived from eyes enucleated for melanoma. The slides were stained with hematoxylin-eosin (HE) or(More)
PURPOSE To investigate the association between hypothyroidism and glaucomatous disease. METHODS This cross-sectional study included all subjects above the age of 40 years from two nationwide surveys: the 2008 National Health Interview Survey (NHIS) as well as the 2007 and 2008 National Health and Nutrition Examination Survey (NHANES). The presence or(More)
BACKGROUND To determine the association between ethnicity and changes in intraocular pressure and anterior segment biometric parameters following cataract surgery by phacoemulsification in nonglaucomatous subjects. DESIGN Prospective clinical cohort study. PARTICIPANTS Caucasian and Asian subjects. METHODS Customized software was used to calculate(More)
PURPOSE To evaluate the association between baseline angle width and laser peripheral iridotomy (LPI)-induced opening of the anterior chamber angle. METHODS Anterior segment optical coherence tomography images captured before and after LPI were analyzed to determine the angle opening distance at 250 μm (AOD250), 500 μm (AOD500), and 750 μm (AOD750) from(More)
BACKGROUND To compare anterior segment biometric parameters between Caucasians and Chinese before and after laser peripheral iridotomy. DESIGN Prospective clinical cohort study. PARTICIPANTS Caucasian and Chinese primary angle-closure suspects. METHODS Anterior segment optical coherence tomography images captured before and after laser peripheral(More)
PURPOSE To compare optic disc size among Caucasian, Chinese, African, Filipino and Hispanic subjects recruited from a university-based general ophthalmology clinic. METHODS In this retrospective cross-sectional study, optic disc size was calculated from fundus photographs. Differences in age, sex and spherical equivalent among the ethnic groups were(More)