Definition of adaptation (visual adaptation)

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adaptation (visual adaptation): Visual adaptation refers to the process by which the visual system adjusts to changes in the environment or stimuli over time. It allows the eyes to maintain sensitivity and perception under varying conditions of light, color, or contrast. Key aspects of visual adaptation include:

Light adaptation: The ability of the eyes to adjust to changes in brightness levels, such as moving from a dimly lit room to bright sunlight.

Dark adaptation: The process where the eyes become more sensitive to low light levels after being in a dark environment for some time.

Color adaptation: The adjustment of color perception depending on the surrounding colors or the duration of exposure to specific hues.

Contrast adaptation: The ability to perceive differences in brightness or contrast between objects, which can be influenced by prolonged exposure to high or low contrast environments.

Visual adaptation occurs at multiple levels within the visual system, from the retina to higher brain regions, and it plays a crucial role in optimizing visual perception to meet the demands of different visual environments.

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