Human eye - Wikipedia
The eyeball grows rapidly, increasing from about 16–17 mm (0.63–0.67 in) diameter at birth to 22.5–23 mm (0.89–0.91 in) by three years of age. By age 12, the eye attains its full size.
Eyeball | Structure, Function & Muscles | Britannica
Eyeball, spheroidal structure containing sense receptors for vision, found in all vertebrates and constructed much like a simple camera. The eyeball houses the retina—an extremely metabolically active layer of nerve tissue made up of millions of light receptors (photoreceptors)—and all of the.
Eye Anatomy: Parts of the Eye and How We See - American ...
2023年4月29日 · Eye Anatomy: Parts of the Eye Outside the Eyeball. The eye sits in a protective bony socket called the orbit. Six extraocular muscles in the orbit are attached to the eye. These muscles move the eye up and down, side to side, and rotate the eye. The extraocular muscles are attached to the white part of the eye called the sclera. This is a ...
Eyeball: Structure and function - Kenhub
2023年11月3日 · The average human eye can see around 100 different shades of color and has a resolution that equals 576 gigapixels. These remarkable features of our eye are enabled by the complex structure of the eyeball. The eyeball consists of three layers; fibrous, vascular and nervous (retina).
The Eyeball - Structure - Vasculature - TeachMeAnatomy
2021年3月20日 · The eyeball is a bilateral and spherical organ, which houses the structures responsible for vision. It lies in a bony cavity within the facial skeleton – known as the bony orbit. Anatomically, the eyeball can be divided into three parts – the fibrous, vascular and inner layers.
Anatomy of the Eye - Johns Hopkins Medicine
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.
Human eye | Definition, Anatomy, Diagram, Function, & Facts ...
2024年10月29日 · The eyeball and its functional muscles are surrounded by a layer of orbital fat that acts much like a cushion, permitting a smooth rotation of the eyeball about a virtually fixed point, the centre of rotation.