Conversion the one kind of energy into another.

You are watching: The lens changes shape to focus an image on the retina; that is, the lens:

WavelengthThe street from the optimal of one irradiate or sound wave to the optimal of the next.
HueThe measurement of shade that is determined by the wavelenght of irradiate ; what we know as the shade names blue, green, and also so forth.
IntensityThe lot of energy in a irradiate or sound wave, which us perceive as brightness or loudness, as established by the waves's amplitude.
PupilThe adjustable opening in the facility of the eye v which light enters.
IrisA ring the muscle organization that creates the colored portion of the eye about the pupil and controls the dimension of the pupil opening.
LensThe transparent framework behind the pupil the changeds form to focus images ~ above the retina.
AccommodationThe process by which the eye's lens transforms shape to focus the photo of close to objects on the retina.
RetinaThe light-sensitive inner surface of the eyes, include the receptor rods and cones to add layers of neurons that begin the processing of intuitive information.
AcuityThe sharpness that vision.
NearsightednessA problem in which adjacent objects room seen more clearly than far-off objects because the lens concentrates the photo of remote objects in former of the retina.
FarsightednessA condition in which faraway objects room seen more clearly than near objects ecasue the photo of close to objects is concentrated behind the retina.
RodsRetinal receptors that detect black, white, and gray ; important for peripheral and twilight vision when cones don't respond.
ConesReceptor cells the are focused near the facility of the retina and also that funcion in daylight or in well-lit conditons. They detect good detail and give rise to color sensation
Optic NerveThe nerve that carries neural impules native the eye come the brain.
Blind SpotThe suggest at which the optic nerve leaves the eye.
FoveaThe main focal suggest in the retina, about which the eye's cap cluster.
Feature DetectorsNerve cell in the mind that answer to details features of the stimulus, such as shape, angle, or movement.
Parallel ProcessingThe handling of several aspects of a trouble simultaneously.
Young-Helmholz Trichromatic (three-color) TheoryThe theory that the retina contains three different color receptors-one most sensitive to red, one come gree, one come blue- i m sorry when engendered in mix can produce the peerception of any type of color.

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Opponent-Process TheoryThe theory that the contrary retinal processes(red-green, yellow-blue, white-black) enable color vision
Color ConstancyPerceiving familiear objects as having continuous color, also if transforming illumination alters the wavelengths reflect by the object.