PSYCH 2220 Sensation & Perception I Lecture 3 Keywords for lecture 2 Air-dwelling eye, water-dwelling eye, (both: mask, powerful lens, flat cornea, pinhole), presbyopia,…

Rod cells in the human eye. Inset: a model of ll-cis-retinal, an oxidized form of vitamin A. For the reaction of ll-cis-retinal with opsin to form visual purple, see Section…

NIGHT VISION REVIEW The Visual System in Flight 1 Visual Test 2 3 What did you see? 4 5 What did you see? 7 What do you see? 9 What did you see? Now what can you see? 11…

VEGGIES AND VITAMIN A VEGGIES AND VITAMIN A Notes By Ann Stevenson Servings How many servings of vegetables should the average person have every day? 1 - 4 cups How many…

How do we See? How do we See? Ms.Cox Although small in size, the eye is a very complex organ. The eye is approximately 1 inch (2.54 cm) wide, 1 inch deep and 0.9 inches (2.3…

The Physiology of Vision part 2 Defects of image forming 1- Hyperopia ( farsightedness) : Is a defect in which the eye-ball is shorter than normal. Parallel rays are focused…