EYE

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retina

A layer at the back of the eyeball containing cells that are sensitive to light and that trigger nerve impulses that pass via the optic nerve to the brain, where a visual image is formed

retina

A multilayered sensory tissue that lines the back of the eye and contains the receptor cells to detect light.

vitreous body

A soft, jellylike substance that fills the vitreous chamber of the eyeball, lying between the lens and the retina.

retina

A tissue of special nerve endings lining the back of the eye that are sensitive to light

pupil

Allows light to enter the eye

cornea

Anatomy of the eye: outermost transparent layer protecting the eye; assists in light refraction

vitreous body

Clear gel that fills the space between the lens and retina

cornea

Clear membrane at the front of the globe covering the iris, pupil, and anterior chamber. Responsible for 60% of the eyes focusing power. Contains 5 layer

retina

Contains photoreceptors

retina

Contains sensory receptors that process visual information and sends it to the brain

crystalline lens

Enclosed in a thin, elastic capsule and positioned between the Iris and the Vitreous Humor. As you get older (45+) the lens becomes less flexible, grows in size and begins to loose its optical transparency. Presbyopia.

cornea

Fibrous layer of clear tissue that extends over the anterior portion of the eye and is continuous with the white of the eye

vitreous body

Fluid between lens & retina of eye

crystalline lens

Forty percent of the optical focusing system, immediately behind the iris, aka Lens

retina

Innermost layer of the eye

retina

Light sensitive layer of the eye; contains rods and cones

pupil

Opening in the center of the iris

cornea

Protects the eye

crystalline lens

Removal of a cataract may restore useful vision. This involves removal of the

pupil

Small opening in the middle of the iris

retina

Soft inner tissue on back wall that contains sensory receptors (colors, etc.)

pupil

The adjustable opening in the center of the eye through which light enters.

cornea

The clear tissue that covers the front of the eye

vitreous body

The jellylike substance filling the posterior cavity of the eye is the ______________.

crystalline lens

The lens inside the eye that enables the changing of focus.

retina

The light-sensitive inner surface of the eye, containing the receptor rods and cones plus layers of neurons that begin the processing of visual information.

pupil

The opening in the iris, which admits light into the interior of the vertebrate eye; muscles in the iris regulate its size.

retina

The sensory membrane that lines most of the large posterior chamber of the vertebrate eye, is composed of several layers including one containing the rods and cones, and functions as the immediate instrument of vision by receiving the image formed by the lens and converting it into chemical and nervous signals which reach the brain by way of the optic nerve.

cornea

Transparent frontal aspect of the eye, covering both the iris and pupil

crystalline lens

Transparent, flexible structure that sits behind the iris. It helps to refract light to be focused on the retina.

crystalline lens

a clear structure in the eye located between the iris and the vitreous humor; responsible for accommodation (adjustments to refract, or bend, the incoming light rays on the fovea centralis of the retina).

crystalline lens

a doubly convex, transparent body in the eye, situated behind the iris, that focuses incident light on the retina.

vitreous body

a transparant jelly like substance filling the interior of the eyeball

cornea

at the front of the eye, bends and focuses light rays

vitreous body

gelatinous material that fills posterior cavity and helps hold the retina in place

cornea

protects and bends incoming light rays/focus

vitreous body

soft, jelly-like substance that fills the eyeball and holds the shape of the eye; vitreous humor


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