Yoshiaki Ichibe

We don’t have enough information about this author to calculate their statistics. If you think this is an error let us know.
Learn More
Purpose: To evaluate the pupil response to chromatic light stimulation in patients with age-related macular degeneration (AMD). Methods: Twenty-one patients with asymmetric AMD, ranging in age from 60 to 83 years (mean age, 71.9 years), were enrolled in the present study. In the healthy eye, the fundus, visual acuity, and visual field were normal(More)
Background: The waveforms of the pupillary light reflex (PLR) can be analyzed in a diagnostic test that allows for differentiation between disorders affecting photoreceptors and disorders affecting retinal ganglion cells, using various signal processing techniques. This procedure has been used on both healthy subjects and patients with age-related macular(More)
PURPOSE To investigate the etiology of bilateral disc swelling in Japanese. METHODS Using Kitasato University's Department of Neuro-Ophthalmology medical records and fundus photographs of the period December 1977 through November 2010, we retrospectively identified 121 outpatients who had been initially confirmed with bilateral disc swelling. RESULTS(More)
—This paper examines the possibility of detecting 2 conditions which cause vision to deteriorate: Aged-Related Mac-ular Degeneration (AMD), and the effects of aging on eyes using the features of PLR waveforms. These features were extracted using Fourier descriptors of PLR waveform shapes, weighted amplitudes of the waveforms, and a balanced combination of(More)
PURPOSE To evaluate the effect of motion stimulation without changing binocular disparity on stereopsis in strabismic patients. METHODS Static and moving stereopsis were measured in 120 normal children and 30 strabismic patients (9 esotropia, 14 exotropia, 7 intermittent exotropia). Using a portable game device (PSP; SONY, Japan), we created stereoscopic(More)
  • 1