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How The Human Eye and Brain Work Together To See Color
When it comes to the eye, i t’s all about light waves . High frequency light waves with short wavelengths are seen as violet. Low frequency light waves with long wavelengths are seen as red. The three primary colors of white light are red, green and blue. All in-between frequencies of colors (picture above) occur whe n white light waves overlap and a ppear as yellow, white, magenta and cyan .
Reflected
Blue Light Waves
When light waves reflect off an object in your field of vision, the wavelengths of each reflected color enters your eye. The first thing light touches is a thin veil of tears in the front of the eye. Light now passes through the eye’s transparent front window, the cornea. The cornea's job is to focus the light entering the eye as it passes through a clear liquid called the aqueous humor. The aqueous humor circulates throughout the front part of your eye and keeps the pressure between the cornea and pupil constant.
After the aqueous humor, light passes through the pupil. This is the round opening in the center of your eye surrounded by your iris, the colored part of your eye. The iris changes it size according to how much light is available to pass through your eye. In bright light, the iris automatically c ontracts preventing too much light from entering the eye and damaging the retina, the back of the eye. When less light is entering the eye, the pupil expands to allow more light in.
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