Ptolemy, in his treatise Optics, held an extramission-intromission idea of vision: the rays (or flux) from the eye fashioned a cone, the vertex currently being within the attention, and the base defining the Visible subject. The rays were sensitive, and conveyed info again towards the observer's intellect about the distance https://remingtonpsybb.tribunablog.com/5-tips-about-opticians-near-me-you-can-use-today-44264705