Paulette Stone
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Learn about the structure and function of the eyeball, a spheroidal organ that contains photoreceptors for vision. Find out how the cornea, iris, lens, and retina work together to focus light and send signals to the brain.
The eyeball is generally less tall than it is wide. The sagittal vertical (height) of a human adult eye is approximately 23.7 mm (0.93 in), the transverse horizontal diameter (width) is 24.2 mm (0.95 in) and the axial anteroposterior size (depth) averages 22.0–24.8 mm (0.87–0.98 in) with no significant difference between sexes and age groups. [3]
Apr 29, 2023 · Learn about the structure and function of the eye, from the outside to the inside, and how it enables us to see. The web page covers the cornea, iris, lens, retina, optic nerve, and more.
Nov 3, 2023 · Learn about the structure and function of the eyeball, a spheroidal sensory organ that detects visual stimuli and conveys them to the brain. The eyeball consists of three layers: fibrous, vascular and nervous, and contains refractive media and chambers.
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- Anterior chamber. The front section of the eye's interior where aqueous humor flows in and out, providing nourishment to the eye.
- Aqueous humor. The clear watery fluid in the front of the eyeball.
- Blood vessels. Tubes (arteries and veins) that carry blood to and from the eye.
- Caruncle. A small, red portion of the corner of the eye that contains modified sebaceous and sweat glands.
Mar 20, 2021 · Learn about the structure and function of the eyeball, a spherical organ that houses the structures responsible for vision. Explore the layers, chambers, vasculature and clinical conditions of the eye, such as glaucoma and papilloedema.
Jul 2, 2024 · Learn about the structure and function of the human eye, a specialized sense organ that receives visual images. Find out how the eye is protected by the orbit, the eyelids, and the conjunctiva, and how it works with the optic nerve and the brain.
