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           This  vector image was created with  Inkscape, and then  manually edited. | 
          
         
         
        Summary 
        English:
        This diagram shows how light from afar is bent by the stretched lens to strike the retina, and how light from a closer source is bent even more sharply by the relaxed lens to strike the retina.
        Italiano:
        Questa immagine mostra come i raggi di luce provenienti da lontano siano deviati dal cristallino stirato per convergere sulla retina, e come i raggi provenienti da una sorgente più vicina siano deviati maggiormente dal cristallino rilassato per convergere sulla retina.
        Svenska:
        Ljus från ett avlägset föremål och ljuset från ett närbeläget föremål bringas i fokus genom att ögonlinsens kurvatur ändras med hjälp av ögats muskler.
        Licence, source, credits & technical notes 
        This diagram was hand-drawn in Inkscape and then tweaked in Notepad by  User:Erin Silversmith. The right-hand eyeball is a clone of the other, and all the arrows are clones of the top-left one. Both the eyeballs and the lenses have translucent black fills.
        The source of information for its creation (aside from general knowledge) was  en:Image:Focus in an eye2.png by  en:User:Fastfission, in turn based on  en:Image:Focus in an eye.png by  en:User:Theresa Knott.
        
         
        
        
        N.B. For crediting purposes, use "Wikimedia Commons", or give the full details supplied on this page. Additionally, you may use this image without restrictions in a non-profit educational environment.
        
        
        
       File usage
       
        The following pages on Schools Wikipedia link to this image (list may be incomplete):
        
        
       
       This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from its original state, some details may not fully reflect the modified file.