We, therefore, already have a lot of retinal images that can be used to work out how old someone’s eye seems to be. But, in this study, researchers ran those pictures, along with other data from previous papers, through more advanced technology.
Article source: https://www.huffingtonpost.co.uk/entry/retinal-scans-biological-ageing_uk_6ab67439e4b0bad9a6470b8b