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| Description: The curved, transparent cornea changes the trajectory of light rays that enter the eye. As a result, light rays that fall on the retina produce a pattern that is upside down and inverted left to right. B Contracted ciliary muscle allows fibers to slacken; the lens rounds up and focuses light from a close object on the retina. Picture Stats: Views: 484 Filesize: 359.7kB Height: 1016 Width: 1343 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=47678 Keywords: Focusing Mechanisms |