are you asking about the night time glow in the eyes? well I'm using a cat as an example. they have this structure positioned at the back of the retina called the tapetum lucidum. it works like a mirror, it reflects the light coming into the eye, back out to light sensor cells in the retina, this is what causes the glow.
Tapetum
Coats disease happens when the blood vessels of the retina develop abnormally. Its symptoms are loss of vision and detachment of the retina, and these can happen in one or both eyes.
The eye. The retina coats the back - inside of the eyeball. It is where all the photosensitive cells reside. It is a flat black colourl
mucus
Immunodeficiency
Surfactant
A lining made of mucus.
The three coats include: 1) The outer fibrous coat; formed by the cornea and the sclera. 2) Middle vascular coat; which consists of the choroid, ciliary body and the iris. 3) The internal nervous coat; which is the retina.
The substance is water. It appears when the weather is cold due to condensation.
The hardest substance in the human body is tooth enamel.The enamel that coats your teeth is the hardest substance in the human body.enamel of your teeth?
Oxidisation (more commonly known as rust) causes the brown tinge that coats silver.
It contains a fast setting glue-like substance that coats and stiffens the hair.