Monday, 1 February 2010

EYE VISION - part 1

Eyes are complex sense organ that has evolved from primitive light sensitive spots on the surface. In eyes the crystalline lens is a transparent structure held in place by a circular lens ligament. Retina extends almost to the ciliary body. It is organized in 10 layers. Retina has the neural pathway with optic tract and receptors to receive the images. Images are captured in receptors and sent to the optics. Colors have three attributes the attributes are hue, intensity and saturation. The color purple can be produced by mixing of red light, green light and blue light. These colors are called the primary colors.

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