Now See This: Fun Facts about the Eyes

NO W SEE THIS: Fun Facts About The Eyes SIZE AND SHAPE An eyeball is less than 1 inch in diameter Each eye weighs about 1/4 of an ounce The eye is shaped like a ball that's been slightly flattened EYE TIME Most people blink about 12 1/10 of a second is We spend about 30 minutes with our the length of an average blink eyes closed due to blinking each day times per minute NEW EYES At birth, babies only see black, white, and shades of grey Newborn babies The tears don't start until babies are 4-13 weeks old don't shed tears when they cry VISION CORRECTION More than 50% of Almost 30% of About 5-10% of people in the U.S. use some sort of people in the U.S. are nearsighted people in the US. are farsighted vision correction EYE COLORS About 50% of Americans born around 1900 had blue eyes 1 out of every 12 males is color blind Red eyes in photos are caused by light reflecting off of blood vessels in the retina Only about 1 in 6 Americans has blue eyes today INSIDE THE EYE The retina contains about 130 million light-sensitive cells It's only the size of a postage stamp Rods are light-sensitive cells in the retina that Cones allow us to see thousands of colors by combining red, blue, and green let us see shape and movement PROVIDED BY: DR. MARK HORNFELD MD wwW.MARKHORNFELDMD.COM SOURCES: http://www.nei.nihgov/health/NEI_Calendar.pdf http://www.huffingtonpost.com/2013/12/20/eye-facts_n_4441884.html http://www.allaboutvision.com/parents/infants.htm http://www.aoa.org/patients-and-public/eye-and-vision-prob- lems/glossary-of-eye-and-vision-conditions/myopia?sso=y https://www.nei.nih.gov/healthyeyes/hyperopia.asp http://www.nytimes.com/2006/10/18/world/americas/18iht-web1018eyes. 3199975.html?_r=0