👉 The term "catoptrics" refers to a type of lens used in optical instruments and devices such as eyeglasses, contact lenses, and corneal prostheses. It is also known as an optical fiber or a fiber optic device. These lenses are designed to focus light on the retina (the part of the eye responsible for vision) by guiding it through a glass tube that contains a small amount of liquid. This liquid acts like a lens, allowing light to be focused without
