Each eye can make a 576-megapixel image 1000 times per second. With the use of https://toolstud.io/photo/megapixel.php, I found out each eye makes 1.01TB of lossless JPEG images per second, if we think it's a camera. So if you have two 100% functioning eyes, you generate potentially 2.02 terrabytes each second. Through a day cycle, that is 174.528 petabytes. Through a full year, that is 63746.352 petabytes. (thinking one year is 365.25 days)
With the source of https://www.who.int/blindness/GLOBALDATAFINALforweb.pdf I found out 39.365 million people are blind.