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What is "eye"?
The eye is a complex sensory organ that enables vision in humans. It consists of several parts working together to capture and process visual information. The front part of the eye includes the transparent cornea and the colored iris, which controls the amount of light entering the eye through the pupil. Behind the iris is the crystalline lens, which focuses light onto the retina at the back of the eye. The retina contains specialized cells called photoreceptors that convert light into electrical signals, which are then sent to the brain via the optic nerve. The eye also has structures such as the sclera, the white outer layer, and the conjunctiva, a thin membrane covering the front of the eye.
a small opening or indentation on the surface, often associated with the attachment point or reproductive structures, such as in potatoes, pineapples, and beans
the small opening or hole at the non-pointed end of a needle through which the thread or yarn is passed