![]() ![]() Their roles are very specific: to receive and process signals of light and color, which gives us our vision. They are specialized cells that are located on the retina, in the back of your eye which processes images. These crucial parts of our eye are known as photoreceptors. ![]() Other times, the eyes might work perfectly but there is a problem with how the brain interprets the signals it receives. From the muscles that control the eyes, to the parts within the eye, to the pathway to the brain, vision impairments result from technical problems during the transitional phases. Impaired vision occurs when a breakdown occurs at any point in this process. The brain receives the information from both eyes and aggregate the images to process a complete picture. The retina then passes visual signals to the brain via the optic nerve. The retina contains a thin layer of color-sensitive cells called rods and cones that perceive and decode color. The lens in the eye focuses the light rays, projecting them to a point at the back of the eye called the retina, where the image appears upside down. The iris then passes the image onto the crystalline lens. The cornea then refracts the light rays through the pupil (the center of the iris where light enters the eye). To process vision, the light reflected from an object in our field of view is gathered by the cornea. All structures within the eye must function properly to capture light, focus it, and process messages back to the brain to create a visual image. Although it is small, the eye is a complex organ. Like a camera, the eye transmits light from the world around us into an image that we can perceive. ![]()
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