Publications by authors named "Tadao Hanawa"

We have evaluated the signal intensity of magnetic resonance (MR) images of the optic nerve quantitatively in 25 patients with unilateral acute optic neuritis (ON). MR imaging was performed with a 1.5 Tesla unit before treatment within 2 weeks after the onset of ON.

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Purpose: To determine the psychological state and personality traits of patients with retinitis pigmentosa (RP) or glaucoma so that a closer and better relationship can be developed with the patients.

Methods: The Yatabe-Guilford personality test was administered to 75 RP patients and 42 glaucoma patients. The latter group included 29 cases of primary open-angle glaucoma, 6 of primary angle-closure glaucoma, and 7 of normal-tension glaucoma.

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Purpose: A new version of frequency doubling perimetry was compared to a former version in patients with glaucoma.

Design: Prospective observational study.

Method: Thirty-two patients with glaucoma were examined twice sequentially in one eye with threshold c-20 of frequency doubling perimetry version 2.

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Visual acuity after cataract surgery in patients with glaucoma cannot be predicted accurately. We studied preoperative recordings of pattern visual evoked cortical potentials (PVECPs) to evaluate postoperative vision in patients with glaucoma and cataract. Fifty patients with glaucoma and no cataract and 31 patients with glaucoma and cataract who underwent phacoemulsification were included in this study.

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Purpose: We studied the results obtained by repeated frequency doubling perimetry in patients with glaucoma and demonstrated a learning effect.

Methods: Prospective observational study. Thirty-three patients who had glaucoma and had never experienced frequency doubling perimetry participated in this study.

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