Kazuhiro Oshitari

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Some evidence suggests that the primary locus of the lesion in Leber's hereditary optic neuropathy (LHON) may be intraocular rather than retrobulbar. To clarify this issue, the condition of the retrobulbar portion of the optic nerve was evaluated in patients with the acute stage of LHON. High resolution MRI with fast spin echo sequences of the optic nerve(More)
PURPOSE We evaluated the capability of ultrasound biomicroscopy (UBM) to predict fibrovascular proliferation at sclerotomy sites in eyes with postoperative vitreous hemorrhage due to proliferative diabetic retinopathy (PDR). METHODS Ultrasound biomicroscopy was used for examining the sclerotomy sites in 13 eyes of 11 patients with PDR experiencing(More)
OBJECTIVE To evaluate the orbital portion of the optic nerve and the subarachnoid space using fast spin-echo magnetic resonance imaging in normal subjects and in patients with papilledema or optic atrophy. DESIGN Measurements of the optic nerve complex on coronal images were made using high-resolution magnetic resonance imaging with fast spin-echo(More)
We report a case of rapidly progressive varicella zoster virus retinitis, which is distinct from acute retinal necrosis syndrome. The patient was a 52-year-old male and suffered acquired immunodeficiency syndrome. Two months after the varicella zoster dermatitis in the distribution of the first division of the left trigeminal nerve, pseudodendritic(More)
PURPOSE To investigate long-term complications of hydrogel buckles used in scleral buckling surgery for retinal detachment. METHODS Clinical records of 31 patients who underwent scleral buckle removal between April 1998 and April 2001 were reviewed. Removed buckles were examined by scanning electron microscopy (SEM). RESULTS Nineteen patients were men(More)
PURPOSE To investigate whether retina damaged in the process of air/fluid exchange could be visualized in situ using trypan blue staining. METHODS Vitrectomy and air/fluid exchange with continuous air infusion for various periods of time was performed in adult pigmented rabbits, followed by injection of 0.4% trypan blue solution into the vitreous cavity.(More)
BACKGROUND Long-term complications of extrusion have been reported in patients who received MIRAgel buckles for retinal detachment. All ophthalmologists need to recognize the clinical characteristics of these severe complications, and how the clinical course of complication after the use of MIRAgel buckles differs from that of silicone buckles. METHODS(More)
PURPOSE The clinical features and visual prognosis after vitrectomy for endophthalmitis which had developed after cataract surgery were compared in two groups with or without background factors, including malignant tumor, diabetes, oral steroid administration, collagen disease, dacryocystitis, and lid closure disturbance. METHOD Fifty-two patients (53(More)