optogram
noun
op·to·gram
ˈäp-tə-ˌgram 
: an image of an external object fixed on the retina by the photochemical action of light on the rhodopsin
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“Optogram.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/optogram. Accessed 31 Dec. 2024.
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