Whatis meant by light and dark adaptation How do they take place - Psychology - Sensory Attentional and Perceptual Processes

Question

Whatis meant by light and dark adaptation? How do they
take place?

Global Expert · Accepted Answer

Lightadaptation is the process of adjusting to bright light
after exposureto dim light This process often takes a minute or two
to becompleted Dark adaptation, on the other hand, refers to the
processof adjusting to dim light after exposure to bright light It
may takehalf an hour or longer depending upon the level of
exposure
Light anddark adaptation takes place due to photochemical
processes Lightadaptation takes place when the molecules of
rhodopsin or visualpurple in the rods of the eye get bleached or
broken down, as aresult of the action of light Dark adaptation
takes place when thelight is removed allowing for restorative
processes that regeneratethe pigment in the rods with the help of
vitamin A

Whatis meant by light and dark adaptation? How do they take place?