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WHAT ARE THE CHANGES TAKES PLACE IN CON CELLS IN DIM LIGHT AND INTENSE LIGHT? |
What are the changes that take place in cone cells in dim light and intense light? Cone cells Sense color and need more light than Rods to work well. Cones are most helpful in normal or bright light. There are 3 types of cones - red, green, and blue - to help you see different ranges of color. Together, these Cones sense combinations of light waves that enable our eyes to see millions of colors. The cones are less sensitive to light. The daylight vision (cone vision) adapts much more rapidly to changing light levels, adjusting to a change like coming indoors out of sunlight in a few seconds. Like all neurons, the cones fire to produce an electrical impulse on the nerve fiber and then must reset to fire again. The light adaption is thought to occur by adjusting this reset time. The cones are responsible for all high resolution vision. The eye moves continually to keep the light from the object of interest falling on the fovea centralis where the bulk of the cones reside. |