Peter Attia· MD
so you know it's funny it's funny you mentioned that because i don't typically see kids in my practice but there is one disease state where i do see kids and that's because we did some research in that area that anyway allows me to see kids and when you explain the eye to a kid and you say well the eye is like a camera and the film in the back that's the retina and they look over at their parents like what is this what is this guy talking about a camera thing on your phone what is he talking about film what is that you know a 50 year old understands that but literally the eye is kind of built like a camera where in the very front you have the cornea which is kind of like the covering on the front of a watch that's the thing that a contact lens would sit on and then the next thing you encounter is the pupil which is the hole in the iris behind that is the lens we refer to it as the lens but it's really one of a couple of different lenses inside the eye but the lens behind the pupil then you have the vitreous cavity and then in the very back the retina which attaches to the optic nerve and that's what goes to the brain so images come in they're bent by the cornea first then bent again by the lens and then they focus hopefully on the retina