A bizarre video of eyeballs confirms our pupils shrink with age
Smaller pupil size makes it harder to see
![mosaic of eyeballs](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2024/06/062524_ab_eyeballstill.jpg?fit=1030%2C580&ssl=1)
Tracking study participants' eyes, specifically their pupil size hints at how age changes our sight.
R. Lazar et al/Royal Society Open Science 2024