AIM To evaluate the paradoxical pupillary constriction in darkness in patients with Pingelapese achromatopsia (PA), and to describe a connection between this phenomenon and the clinical features. METHODS 27 patients with PA were examined. All underwent a full ophthalmic examination which included Snellen visual acuity and ophthalmoscopy. Colour vision examination was performed with Ishihara p...

SECTION 1 A 60-year-old man presented to our clinic with a 6-month history of progressive visual loss in the left eye. Twelve months prior, he experienced an acute left hemianopia secondary to a stroke. He was anticoagulated and fully recovered. Six months following the stroke, he began to notice blurred vision in his left eye. There was no formal ophthalmic examination performed at that time, ...

PURPOSE To determine the visual characteristics of Japanese subjects with the Waardenburg syndrome type 2. METHODS The visual functions of 11 albino patients who were identified from the screening of 240 children attending a school for children with a hearing deficit were studied. The ophthalmological examinations included eye position, visual acuity, biomicroscopy, ophthalmoscopy, visual fie...

MOON. Y. Ishihara 1 , N. Namiki 2 , S. Sugita 3 , K. Matsumoto 1 , S. Goossens 1 , H. Araki 1 , H. Noda 1 , S. Sasaki 1 , T. Iwata 4 and H. Hanada 1 , 1 RISE Project Office, National Astronomical Observatory of Japan (2-12 Hoshigaoka, Mizusawa-ku, Oshu, Iwate 023-0861, Japan; [email protected]), 2 Kyushu Univ. (6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan), 3 Univ. of Tokyo (5-1-5 ...

HAJIME ISHIHARA†, MARGARITA KOROVINA‡, ARNO PAULY§, MONIKA SEISENBERGER¶ and DIETER SPREEN‖ †School of Information Science, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa 923-1292, Japan Email: [email protected] ‡A.P. Ershov Institute of Informatics Systems, Russian Academy of Science, Siberian Branch, Prospekt Lavrentev 6, Novosibirsk, 630090, Russia Email:...

In this study, we develop a novel estimation method for quantile treatment effects (QTE) under rank invariance and stationarity assumptions. Ishihara (2020 Ishihara, T. (2020), “Identification Estimation of Time-Varying Nonseparable Panel Data Models Without Stayers,” Journal Econometrics, 215, 184–208. DOI: https://doi.org/10.1016/j.jeconom.2019.08.008.[Crossref] , [Google Scholar]) explores i...