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Opticians - An Overview

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Ptolemy, in his treatise Optics, held an extramission-intromission principle of vision: the rays (or flux) within the eye shaped a cone, the vertex being within the attention, and the base defining the visual field. The rays were being delicate, and conveyed details back on the observer's intellect about the space https://radio60470.ivasdesign.com/51988652/5-tips-about-prescription-reading-glasses-you-can-use-today

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