Peter Attia· MD
when we are young when we're born the lens of our eye is extremely elastic it's like a gummy bear and it can change shape to bring near objects into focus but as we age and this is universal the elasticity of the lens goes down and we're no longer able to sort of zoom focus in and you have it have to start pushing things farther and farther away or get some sort of optical aid like a pair of spectacles to see up close