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13 Cards in this Set

  • Front
  • Back
CORNEA
PROTECTIVE COVERING WHERE REFLECTED LIGHT IS FIRST ENTERS THE EYE

"CORN FIRST COVERS THE FIELD"
LENS
BENDS LIGHT RAYS; FOCUSES A FLIPPED, INVERTED IMAGE INTO THE RETINA

"LINDSAY BENDS AND FLIPS AND IS VERY INTROVERTED"
RETINA
THIN STRUCTURE AT THE BACK OF THE EYE THAT CONTAINS THE RODS AND THE CONES

"TINA IS IN THE BACK WITH RODNEY AND CONEY"
RODS
CELLS IN THE PERIPHERY OF THE RETINA THAT RESPOND TO BLACK AND WHITE
BETTER IN LOW LIGHT
MORE SENSITIVE TO MOTION
LESS VISUAL ACUITY

"RODNEY LIKES TO LAY LOW, HE'S VERY SENSITIVE, NOT THAT SHARP, DETECTS MOTION, LIKES BLACK AND WHITE"
OPTIC NERVE
one of the twelve cranial nerves

behind the eyeball and transmits visual information to the brain
BLIND SPOT
PLACE WHERE THE OPTIC NERVE EXITS THE EYE
HAS NO RECEPTOR CELL SO NO VISION
LIGHT WAVES
ELECTROMAGNETIC WAVES THE STIMULATE RECEPTORS IN THE EYE
INTENSITY
AMOUNT OF ENERGY PER UNIT OF TIME
BRIGHTNESS
WAVELENGTH
DISTANCE BETWEEN TWO WAVE CRESTS (COLOR)

refers to the distance between the peak of one wave and the peak of the next wave.
TRICHROMATIC THEORY (YOUNG-HELMHOLTZ)
3 TYPES OF CONES DETECT 3 WAVELENGTHS OF LIGHT (BLUE, GREEN, RED)

DOES NOT EXPLAIN NEGATIVE AFTER IMAGES
CONES
CENTERED IN THE FOVEA (MIDDLE OF THE RETINA)

RESPOND TO COLOR,GOOD FOR DAYTIME VISION

MORE VISUAL ACUITY
NEGATIVE AFTERIMAGE
IF YOU STARE AT ONE COLOR, THEN LOOK AT A WHITE SPACE, YOU SEE A COLOR AFTERIMAGE IN THE COMPLIMENTARY COLOR OF THE ORIGINAL COLOR

EX: YOU LOOK AT SOMETHING RED, THEN LOOK AT A WHITE SPACE AND YOU'LL SEE AN AFTERIMAGE IN GREEN
OPPONENT PROCESS THEORY (HERING)
RECEPTOR CELLS ARE ARRANGED IN PAIRS

RED/GREEN
BLUE/YELLOW
BLACK/WHITE

WHEN ONE IS STIMULATED, THE OTHER IS INHIBITED