The protective spectacle or film over the cornea, known as an eye cap or nictitating membrane, is found in certain animals, particularly reptiles and birds. This structure serves to protect the eye from debris and injury while maintaining moisture and clarity. In some species, it can move across the eye, providing a shield during activities like hunting or swimming. Unlike eyelids, the eye cap is usually a transparent or translucent layer, allowing for vision while offering protection.
The fluid behind the cornea is known as the vitreous humor
The sclera is the fibrous outer layer of the eye which retains the overall shape of the eye. This is commonly known as the white of the eye.
"Spectacle" is an adjective describing something that can be seen or viewed, such as a performance or display, that is considered remarkable and impressive. An example sentence: "His plays were a spectacle known throughout the world."
The German Shepherd breed is known for being loyal and protective.
Liechtenstein is a country that possesses no known mineral deposits. It is a landlocked country located in central Europe with a small geographic area and limited natural resources.
astigmatism
The transparent anterior portion of the eye is known as the cornea. It plays a crucial role in focusing light onto the retina at the back of the eye to create clear vision. The cornea has no blood supply and receives nutrients through the tear film and aqueous humor.
The Ferns known as "Ophioglossum", apparently possesses 768 (384 pairs) of chromosomes - Humans only have 46 (23 pairs).
The cornea gets some oxygen through the water in the eye known as the aqueous humor, all other oxygen is from the environment. That's why it's a big deal that contacts allow oxygen through them to the eye.
The quantity of matter a body possesses is known as its mass. Mass is a measure of the amount of matter in an object and is typically measured in grams or kilograms.
This is known as laser-assisted in situ keratomileusis (LASIK) surgery. During the procedure, a flap is created in the cornea, and a laser is used to reshape the underlying tissue to correct the refractive error. The flap is then repositioned to allow for the cornea to heal.
Also known as an active volcano, it is a volcano which still possesses the ability to erupt.