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Updated: Sep 10, 2025

Dynamic Visual Tests to Identify and Quantify Visual Damage and Repair Following Demyelination in Optic Neuritis Patients
12:23

Dynamic Visual Tests to Identify and Quantify Visual Damage and Repair Following Demyelination in Optic Neuritis Patients

Published on: April 14, 2014

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ヴォルト・コヤナギ・ハラダ病における色覚回復のダイナミクス:コンストラストテストと適応光学画像を用いた縦断研究

Tomoko Nakamura1, Shinya Abe2, Hitoshi Yamazaki2

  • 1Department of Ophthalmology, Faculty of Medicine, Academic Assembly, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan. nakatomo@med.u-toyama.ac.jp.

Journal of ophthalmic inflammation and infection
|August 25, 2025
PubMed
まとめ

Vogt- Koyanagi- Harada (VKH) 疾患の患者では6ヶ月以内に色の視覚が著しく改善され,コンストラストテストと適応光学が構造機能の関連性を明らかにしました. 詳細な視覚的評価の必要性を強調した.

キーワード:
アダプティブ光学カラービジョンコンストラストテストコーンの密度光受容体ヴォルト・コヤナギ・ハラダ病

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Development of a Gaze-Contingent Display Framework Designed for Perceptual and Oculomotor Research with Simulated Central Vision Loss07:12

Development of a Gaze-Contingent Display Framework Designed for Perceptual and Oculomotor Research with Simulated Central Vision Loss

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Simultaneous ex vivo Functional Testing of Two Retinas by in vivo Electroretinogram System09:16

Simultaneous ex vivo Functional Testing of Two Retinas by in vivo Electroretinogram System

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Color Vision01:24

Color Vision

Color perception begins in the retina, the light-sensitive layer at the back of the eye. Two main theories explain how colors are seen: the trichromatic theory and the opponent-process theory. The trichromatic theory, proposed by Thomas Young in 1802 and extended by Hermann von Helmholtz in 1852, suggests that color vision is based on three types of cone receptors in the retina. These cones are sensitive to different but overlapping ranges of wavelengths corresponding to red, blue, and green.
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Photoreceptors and Visual Pathways01:22

Photoreceptors and Visual Pathways

At the molecular level, visual signals trigger transformations in photopigment molecules, resulting in changes in the photoreceptor cell's membrane potential. The photon's energy level is denoted by its wavelength, with each specific wavelength of visible light associated with a distinct color. The spectral range of visible light, classified as electromagnetic radiation, spans from 380 to 720 nm. Electromagnetic radiation wavelengths exceeding 720 nm fall under the infrared category,...
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Anatomy of the Eyeball

The eye is a spherical, hollow structure composed of three tissue layers. The outer layer — the fibrous tunic, comprises the sclera — a white structure — and the cornea, which is transparent. The sclera encompasses some of the ocular surface, most of which is not visible. However, the 'white of the eye' is distinctively visible in humans compared to other species. The cornea, a clear covering at the front of the eye, enables light penetration. The eye's middle...
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