Summary: In the second episode of Miniseries 2, "How Humans are Fallible", we continue to look at the eye and its complex interworkings. The structure of the eye poses many problems when we compare it to what we see. Do rods work in the daytime? How do we see colour in our peripheral vision when there are very few cones there? Can you really make things disappear in your blind spot? All of these questions will be answered as we explore the structure and biology of the eye and how that affects what we see. Corrections/Clarifications: When we mentioned that 20/20 is normal eyesight, we used the imperial units of feet. In the metric system that would be 6/6 in meters. Microsaccades are when your eye jumps around when you look straight ahead while saccades occur when you quickly look from one thing to another. Saccades are responsible for the stopped clock illusion and both are edited out by your brain. They do play Fizbin on Beta Antares Four, but it's not a team sport. It's a card game, a man's game, except on Tuesday. Links: Our Show Notes cover Caring for your Human, The Biology of the Eye, The Blind Spot, Aging, and Logarithmic Sensitivity, The Red Myth, and end with a Magic Show Two pages of content on Cones and Rods The Wikipedia aritcles on Mydriasis, Miosis, and Anisocoria About our eyes' logarithmic sensitivity and the exact sensitivity curve An article about the best light to use at night The fovea gives us half our visual information yet has less than 1% of the cones in our eye Our blue cones undergo blue amplification in the brain Wikipedia’s article on visual acuity and eye charts An excellent XKCD on our visual field A picture of a fiber optic lamp in case you didn't understand the reference By 45, almost all adults will need reading glasses and half of people over 80 will have cataracts. Here's more information on age-related eye diseases Wikipedia's great article and image on the blind spot
