Now, there is a part of vision that's like a camera: the eye has a lens that focuses an image on the back of the eye where there are 130 million photoreceptors, so the eye is like a 130-megapixel camera.
각각의 부분을 비교하면 눈은 1억  3천만개의 광수용체가 있는 렌즈입니다.