The white of your eye is called the sclera. This is a hard protective layer which covers all the eyeball except the cornea.
What covers the whole eye?
Sclera: the white of your eye. Conjunctiva: a thin layer of tissue that covers the entire front of your eye, except for the cornea.
What is the protective cover over the eye?
The wall of an eyeball has three layers, rather like the layers of an onion: The sclera (pronounced: SLEER-uh) is the protective layer. This tough, fibrous tissue surrounds the eyeball and attaches to the cornea, which is the clear front surface of the eye.
Is the black part of your eye a hole?
The pupil is the hole located in the center of the iris. It allows light to enter the eye. The pupil appears black because light rays entering the pupil are absorbed by the tissues inside the eye. Or they are absorbed after diffused reflections within the eye.
How are the eyes protected?
The visible part of the eye is protected by the eyelids and the eyelashes, which help keep dirt, dust, and even harmful bright light out of the eye. Eyes are also protected by tears, which moisten them and clean out dirt, dust, and other irritants that get past the defenses of the eyelashes and eyelids.
How do your eyes stay lubricated?
When closed, the eyelids help trap the moisture against the surface of the eye. Small glands at the edge of the upper and lower eyelids secrete an oily substance that contributes to the tear film and keeps tears from evaporating. Tears keep the surface of the eye moist.
What illnesses can be seen in the eyes?
Common Eye Disorders and Diseases
- Refractive Errors.
- Age-Related Macular Degeneration.
- Diabetic Retinopathy.
Why do doctors have bad handwriting?
Sometimes doctors themselves cannot read their own handwriting, though they sheepishly admit it to be their own. The most common reason for illegible handwriting is the large number of patients to be seen, notes to be written and prescriptions given, in a short time.
Can an eye doctor tell if you have a brain tumor?
Eye doctors can detect problems with the optic nerve, blurriness in the eye, or other issues that can indicate the presence of a tumor.