Iris Recognition


In this activity you will gain experience with iris recognition and explore ocular metrics. Learn more by reading Iris Recognition.


Digital Camera
Notebook Computer with PowerPoint
Standard Eye Color Chart


Take a close-up picture of each eye.
With an enlarged image of your eye printed out, and write down your measurements for the following:

 Width of eye (cm)                                                            
 Width of pupil (cm)  
 Width of iris (cm)  
 Length of tear duct (cm)  

 Eye Color  
 Width of pupil / width of iris   
 Width of iris / width of eye  
 Width of tear duct / width of eye   
 Upper eyelashes: {up, down, or other}   
 Other features (freckles, skin, misc.)


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  1. kkkkkkkk 3:11 PM September 30, 2020


  2. Joeybats 6:16 PM October 23, 2020

    why cant I type my nubers

  3. GamerDoge 7:15 PM September 26, 2022

    what do I do

  4. mastermind 6:22 PM September 20, 2023

    I CANT TYPEEE :( :( D:

  5. mastermind 6:24 PM September 20, 2023


  6. mastermind 6:21 PM September 25, 2023

    why cant i type >:(

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