![]() ![]() The intricacy and seeming perfection of the eye, both as an. The optic nerve then transmits these signals to the visual cortex – the part of the brain that controls our sense of sight. Sinauer Associates, 84.95, 766 pp., 1999 0-87893-645-9 ISBN: 0-87893-645-9. The retina acts like an electronic image sensor of a digital camera, converting optical images into electrical signals. Light focused by the cornea and crystalline lens (and limited by the iris and pupil) then reaches the retina – the light-sensitive inner lining of the back of the eye. Process called accommodation, this lens automatically helps the eye focus on near and approaching objects, like an autofocus camera lens. The eye’s crystalline lens is located directly behind the pupil and further focuses light rays. The iris (colored part) of the eye functions like the diaphragm of a camera, controlling the amount of light reaching the retina by automatically adjusting the size of the pupil (aperture). Free image/png, Resolution: 2305x2226, File size: 742Kb, human eye structure picture with tags: anatomy, medicine, health, medical, retina, human, optic. Light is focused primarily by the cornea – the clear front surface of the eye, which acts like a camera lens. In a number of ways, the human eye works much like a digital camera: The brain, in turn, processes the information and reacts accordingly. Read on for a basic description and explanation of the structure (anatomy) of your eyes and how they work (function) to help you see clearly and interact with your world. And though people talk about the color of the eye, they're actually talking about the color of the iris. ![]() Let's start with the one that Is most visible to us, this one. The iris (colored part) of the eye functions like the diaphragm of a camera, controlling the amount of light reaching the retina by automatically adjusting the size of the pupil (aperture). How vision works or the ins and outs of eye health. So, we'll look at the different major parts of our eyes, and we'll also see what each one does. Light is focused primarily by the cornea the clear front surface of the eye, which acts like a camera lens. When surveyed about the five senses - sight, hearing, taste, smell and touch - people consistently report that their eyesight is the mode of perception they value (and fear losing) most.ĭespite this, many people don’t have a good understanding of the anatomy of the eye, ![]()
0 Comments
Leave a Reply. |