The human eye works similar to a camera. Each and every part plays a fundamental role in providing clear vision. So think of the eye like a camera, think of the cornea of the eye having the same role of the lens cover of the camera. As the eye's main focusing element, the cornea takes widely diverging rays of light and bends them through the pupil, the dark round opening in the center of the colored iris. The iris and pupil act like the aperture of a camera. And the lens of the eye exactly acts like the lens of the camera, where it helps to focus the light to the back of the eye. The back of the eye is coated with a layer called the retina which acts like the film of the camera. The retina is a membrane lining the back of the eye that contains photoreceptor cells. The photoreceptor nerve cells of the retina change the light rays into electrical impulses and send them through the optic nerve to the brain where the image is observed. The optic nerve is the structure that...
1.png
...takes the information from the retina as electrical signals and delivers it to the brain where this information is interpreted as a visual image. The center of the retina is called the macula. The macula is the part of the retina, which is most sensitive, and is responsible for the central, sharp (or reading) vision.
The human eye is extraordinary. It accommodates to changing lighting conditions and focuses light rays originating from various distances from the eye. When all of the components of the eye function properly, light is converted to impulses and conveyed to the brain where an image is perceived.
The human eye works similar to a camera. Each and every part plays a fundamental role in providing clear vision. So think of the eye like a camera, think of the cornea of the eye having the same role of the lens cover of the camera. As the eye's main focusing element, the cornea takes widely diverging rays of light and bends them through the pupil, the dark round opening in the center of the colored iris. The iris and pupil act like the aperture of a camera. And the lens of the eye exactly acts like the lens of the camera, where it helps to focus the light to the back of the eye. The back of the eye is coated with a layer called the retina which acts like the film of the camera. The retina is a membrane lining the back of the eye that contains photoreceptor cells. The photoreceptor nerve cells of the retina change the light rays into electrical impulses and send them through the optic nerve to the brain where the image is observed. The optic nerve is the structure that...
...takes the information from the retina as electrical signals and delivers it to the brain where this information is interpreted as a visual image. The center of the retina is called the macula. The macula is the part of the retina, which is most sensitive, and is responsible for the central, sharp (or reading) vision.
The human eye is extraordinary. It accommodates to changing lighting conditions and focuses light rays originating from various distances from the eye. When all of the components of the eye function properly, light is converted to impulses and conveyed to the brain where an image is perceived.