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Mod 22
Eye diagram
Term | Definition |
---|---|
Pupil | Adjustable opening in the center of the eye through which light passes |
Cornea | The eyes clear, protective layer, covering the pupil and iris |
Iris | A ring of muscle tissue that forms the colored portion of the eye. Controls the size of the pupil opening |
Lens | Transparent structure behind the pupil that changes shape to help focus images on the retina |
Retina | Light sensitive inner surface of the eye containing rods & cones (and neurons); begins processing visual information |
Fovea | Central focal point in the retina, around which the eye's cones cluster |
Optic Nerve | Nerve that carries neura; impulses from the eye to the brain |
Path of light (first) | Cornea |
Path of light (second) | Pupil |
Path of light (third) | Lens |
Path of light (fourth) | Retina |
Path of light (fith) | Optic Nerve |