The white part of the eye is a tough outer layer called the sclera. The sclera protects the inside of the eye and helps the eye keep its structure. The colored part of the eye is called the iris. This portion of the eye is what controls the amount of light that is let into the inner eye.
What is the anatomy of the human eye?
Picture of Eye Anatomy Detail. The eye is our organ of sight. The eye has a number of components which include but are not limited to the cornea, iris, pupil, lens, retina, macula, optic nerve, choroid and vitreous. Cornea: clear front window of the eye that transmits and focuses light into the eye.
Method 1 Treating Red Eyes
- Rest your eyes.
- Use eye-drops or artificial tears.
- Consider using an eye gel for extreme eye dryness.
- Take allergy medication.
- Try an eye rinse.
- Place a warm compress over your eyelids.
- Relax with cool, damp teabags over your eyes.
A raw egg yolk surrounded by the egg white. Albumen is the name for the clear liquid (also called the egg white or the glair/glaire) contained within an egg. In chickens it is formed from the layers of secretions of the anterior section of the hen's oviduct during the passage of the egg.
Yellowing of the eyes occurs if you have jaundice. Jaundice occurs when the oxygen-carrying components in the blood, called hemoglobin, break down into bilirubin and your body doesn't clear the bilirubin. This also can occur in your eyes. The white portion of the eye is known as the sclera.
Front of left eye with eyelids separated to show medial canthus. Canthus (pl. canthi, palpebral commissures) is either corner of the eye where the upper and lower eyelids meet. More specifically, the inner and outer canthi are, respectively, the medial and lateral ends/angles of the palpebral fissure.
When you have finished removing the tissue surrounding the eye identify the sclera, cornea, optic nerve, and the remaining external muscle parts. The cloudy nature of the cornea is caused by the non-living tissue. It is transparent in the living state.
Light rays enter the eye through the cornea, the clear front “window” of the eye. The cornea's refractive power bends the light rays in such a way that they pass freely through the pupil the opening in the center of the iris through which light enters the eye.
The sclera is the part of the eye commonly known as the “white.” It forms the supporting wall of the eyeball, and is continuous with the clear cornea. The Sclera is protective layer, inside it holds the Vitreous, Choroid and Retina.
Towards the front of the eye, the muscles of the iris (colored portion of the eye) control the amount of light entering the eye. Pigments in the iris give it color. The iris represents the anterior portion of the uveal tract. The iris is made up of smooth muscle fibers that adjust pupil size.
Periorbital puffiness, also known as "puffy eyes", or swelling around the eyes, is the appearance of swelling in the tissues around the eyes, called the orbits. It is almost exclusively caused by fluid buildup around the eyes, or periorbital edema.
In humans and most mammals and birds, the iris (plural: irides or irises) is a thin, circular structure in the eye, responsible for controlling the diameter and size of the pupil and thus the amount of light reaching the retina. Eye color is defined by that of the iris.
The white part is the sclera, the colored part that's what you're talking about when you talk about "eye color" is the iris, and the black part in the middle is the pupil.
Lens: The transparent structure suspended behind the iris that helps to focus light on the retina; it primarly provides a fine-tuning adjustment to the primary focusing structure of the eye, which is the cornea.
Blind spot, small portion of the visual field of each eye that corresponds to the position of the optic disk (also known as the optic nerve head) within the retina. There are no photoreceptors (i.e., rods or cones) in the optic disk, and, therefore, there is no image detection in this area.
The eye has many parts that must work together to produce clear vision:
- The sclera, or white part of the eye, protects the eyeball.
- The pupil, or black dot at the centre of the eye, is a hole through which light can enter the eye.
- The iris, or coloured part of the eye, surrounds the pupil.
The cornea has a curved structure that enables the focus of light waves. The middle layer is also referred to as uvea or vascular tunic because it contains blood vessels that transmit blood throughout the eye. This layer is made up of the choroid, ciliary body and retina.
Front part of the tough outer coat, the sclera. It is convex and transparent. Pigmented - decides the colour of your eyes - so light cannot pass through. Its muscles contract and relax to alter the size of its central hole or pupil.
The orbicularis oculi muscle and the oculomotor nerve control the opening and closing of the eyelid. The upper and lower eyelids are separated by the palpebral fissure. Also called palpebra [pal′-p?br?] .
The front part of the eye is filled with a clear fluid called intraocular fluid or aqueous humor, made by the ciliary body. The fluid flows out through the pupil. It is then absorbed into the bloodstream through the eye's drainage system.
Here is a look at the various parts of the eye:
- The Cornea. The cornea is the dome-shaped outer covering of the eye.
- The Sclera.
- The Conjunctiva and Lacrimal Glands.
- The Vitreous Humor and Aqueous Humor.
- The Iris and Pupil.
- The Lens.
- The Retina.
- The Macula and Fovea.