…In the later stages of retinitis pigmentosa and glaucoma, only the central visual field remains. A scotoma that occurs in the central visual field is called a central scotoma. When a central scotoma is present, it is often accompanied by a decrease in visual acuity. It is broadly divided into two types: those caused by optic nerve diseases such as optic neuritis, and those caused by macular chorioretinal diseases such as central retinitis. … *Some of the terminology that mentions "central scotoma" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…網膜色素変性症や緑内障後期では,中心部の視野のみが残存する。また暗点の中でも,とくに視野中心部に生じたものを中心暗点central scotomaという。中心暗点がある場合,視力の低下を伴っていることが多く,主として視神経炎のような視神経疾患によって起こるものと,中心性網膜炎のような黄斑部の網脈絡膜疾患によって起こるもの,の二つに大別される。… ※「central scotoma」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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