(2) 1.11 Vision

Wavelength

Distance from one wave peak to the next, determines hue (color).

Cornea

Protects the eye; allows light to enter through the iris and pupil.

Lens

Changes shape to focus light rays on the retina.

Fovea

The central focal point of the retina.

Retina

Contains photoreceptors that process visual information; transduction occurs here.

Photoreceptors

Cells that detect light; include rods (for black, white, & gray) and cones (for fine color & detail).

Rods

Type of photoreceptor that enables peripheral and twilight vision; sensitive to low light.

Cones

Type of photoreceptor that enables vision in daylight and provides fine color and detail.

Ganglion Cells

Cells that send information from the retina to the optic nerve.

Optic (visual) Nerve

Carries neural impulses from the eye to the brain.