orthoscope / ˈɔr θəˌskoʊp /

📖毕业后词汇正视镜直视镜正视仪正视眼镜

orthoscope 的定义

n. 名词 noun

Ophthalmology.

  1. an instrument for examining the internal structures of the eye through a layer of water that neutralizes the refraction of the cornea.