👀eyes are the window to the soul. 👀The equine eye is among the largest eyes of all land-based mammals. 👀It’s about 4 cm (1.5 inches) deep—essentially the width of a playing card. 👀The back of the eye is actually a part of the brain, with its optic nerve (which sends visual information to the processing parts of the brain) looking kind of like a full moon and the retina capturing the images horses see. 👀The nerve is positioned below a triangular reflective layer called the tapetum. The tapet