Aqueous Body: the thin, clear fluid between the cornea and the iris. This fluid provides nutrients to the cornea and the lens.
Choroid: the thin, vascular membrane between the retinal and sclera. The choroid is composed of layers of blood vessels that provide nourishment to the outer layers of the retina.
Ciliary Body: the part of the eye that produces aqueous humor.
Conjunctiva: the clear tissue overlying the sclera (bulbar conjunctiva) that is continuous with the underside of the eye lid (palpebral conjunctiva)
Cornea: the clear front window of the eye. The cornea provides most of the focusing power when light enters the eye.
Iris: the colored part of the eye. The iris adjusts the size of the pupil and regulates the amount of light that enters the eye.
Lens: the transparent structure behind the pupil that focuses light rays onto the retina.
Macula: the small, highly sensitive area in the retina. The macula is responsible for fine, detailed central vision.
Optic Nerve: the nerve that connects the eye to the brain. The optic nerve transmits electrical impulses from the retina to the brain, which interprets them as images.
Pupil: the dark center in the middle of the iris. The pupil determines how much light is let into the eye.
Retina: the nerve layer that lines the back of the eye. The retina senses light and creates impulses that are sent via the optic nerve to the brain.
Sclera: the tough, opaque tissue that serves as the eye’s protective outer coat.
Vitreous: the transparent, jelly-like substance that fills the eye’s cavity. It is composed mainly of water and helps to maintain the shape of the eye.
Choroid: the thin, vascular membrane between the retinal and sclera. The choroid is composed of layers of blood vessels that provide nourishment to the outer layers of the retina.
Ciliary Body: the part of the eye that produces aqueous humor.
Conjunctiva: the clear tissue overlying the sclera (bulbar conjunctiva) that is continuous with the underside of the eye lid (palpebral conjunctiva)
Cornea: the clear front window of the eye. The cornea provides most of the focusing power when light enters the eye.
Iris: the colored part of the eye. The iris adjusts the size of the pupil and regulates the amount of light that enters the eye.
Lens: the transparent structure behind the pupil that focuses light rays onto the retina.
Macula: the small, highly sensitive area in the retina. The macula is responsible for fine, detailed central vision.
Optic Nerve: the nerve that connects the eye to the brain. The optic nerve transmits electrical impulses from the retina to the brain, which interprets them as images.
Pupil: the dark center in the middle of the iris. The pupil determines how much light is let into the eye.
Retina: the nerve layer that lines the back of the eye. The retina senses light and creates impulses that are sent via the optic nerve to the brain.
Sclera: the tough, opaque tissue that serves as the eye’s protective outer coat.
Vitreous: the transparent, jelly-like substance that fills the eye’s cavity. It is composed mainly of water and helps to maintain the shape of the eye.
how our eyes move:
The muscles of our eyes are some of the busiest muscles in the body. Twelve separate muscles (6 on each eye) must move in perfect coordination for us to see the object we are looking at.
The lateral and medial rectus work like reigns on a horse to aim the eye left and right. The superior and inferior rectus serve to aim the eye up and down. The superior and inferior oblique serve to rotate the eye tortionally, like a door knob.
Innervation of the eye muscles come from three different cranial nerves (CN). CN3 (Oculomotor n.) is responsible for the superior, inferior, and medial rectus, as well as the inferior oblique. CN6 (Abducens n.) innervates the lateral rectus. CN4 (Troclear n.) innervates the superior oblique.
The lateral and medial rectus work like reigns on a horse to aim the eye left and right. The superior and inferior rectus serve to aim the eye up and down. The superior and inferior oblique serve to rotate the eye tortionally, like a door knob.
Innervation of the eye muscles come from three different cranial nerves (CN). CN3 (Oculomotor n.) is responsible for the superior, inferior, and medial rectus, as well as the inferior oblique. CN6 (Abducens n.) innervates the lateral rectus. CN4 (Troclear n.) innervates the superior oblique.
