Sentences with phrase «back of the eyeball»

The condition mainly affects the retina, a layer at the back of the eyeball that picks up light and sends that info to the brain, where it's translated into images.

The human retina is a patch of nervous tissue in the back of the eyeball half a millimeter thick and approximately two centimeters across.

This redness results from light reflecting off blood vessels in the retina, the light - sensitive layer of tissue lining the back of the eyeball.

The retina lives at the back of the eyeball, and with its thin layers of modified neurons, it is almost like a small additional patch of brain.

In a healthy eye, light entering the pupil is focused by the lens and then passes through the vitreous humour — the jelly like central region — to the retina at the back of the eyeball.

Examples include the cochlea in the inner ear, with its sophisticated hair cells and sound - mapping capabilities, and the retina at the back of the eyeball, onto which optical images are projected.

His AMD treatment works in a self - contained area on the back of the eyeball.

Some dogs also have optic nerve coloboma in which a portion of the optic nerve where it enters the back of the eyeball has failed to develop.

33) Progressive Retinal Atrophy — this disease of the eye is when the nerve cells at the back of the eyeball slowly degenerate (or fail), which can lead to blindness.

The retina at the back of the eyeball contains specialized cells called rods that detect shades of white, black and gray while cone cells detect color.

The back of the eyeball of the dog is covered with a thin layer of tissue.

This means the red is coming from blood vessels at the back of the eyeball, which is also the cause of human red - eye.

Because of the physiology of the cones and rods connecting to the optic nerve at the back of the eyeball, in the darkness we have a literal blind spot in the center of our field of vision.