https://www.aboutkidshealth.ca/Article?contentid=1941&language=English 

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https://robertsonopt.com/parts-of-the-eye-their-function/

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https://www.merckmanuals.com/en-ca/home/eye-disorders/biology-of-the-eyes/structure-and-function-of-the-eyes

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https://www.sightsavers.org/protecting-sight/the-eyes/#:~:text=The%20images%20we%20see%20are,coloured%20part%20of%20the%20eye.

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http://www.kumc.edu/Documents/ophthalmology/Cornea%20Structure%20Layers%20and%20Function%20web.pdf 

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https://coopervision.ca/eye-health-and-vision/how-do-we-see

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https://www.webmd.com/eye-health/picture-of-the-eyes#2

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https://www.share4rare.org/library/retinoblastoma/introduction-eye#:~:text=Resources-,Introduction%20to%20the%20eye,the%20optic%20nerve%20(ON).

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https://www.cdc.gov/visionhealth/basics/ced/index.html 

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Photo Sources:

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https://kidshealth.org/EN/images/illustrations/eye-400x400-rd1-enIL.gif