Vision

a. Approximately 30% of America is NEAR-SIGHTED 30% C. OF THE 75% VISION CORRECTION PRODUCTS: 60% 64% GLASSES 11% LENSES b. Approximately 60% of America is FAR-SIGHTED C. OF THE 64% THAT WEAR GLASSES: 58% WOMEN 42% MEN d. PEOPLE THAT USE BOTH GLASSES AND LENSES: 75% c. Approximately 75% of America use 62% USE LENSES MORE VISION CORRECTION e. 1.3 MILLION AMERICANS LEGALLY BLIND VISIONING THE WORLD a. About 30 percent of Americans are c. 75% of adults use some sort of e. About 1.3 million Americans are nearsighted, to some degree, and about vision correction. About 64% of them legally blind. An estimated 47,000 60 percent are farsighted. Nearsighted wear eyeglasses, and about 11% wear people, one person every 11 minutes, The brain receives a sharply focused picture when light rays entering the people have trouble focusing on an contact lenses, either exclusively, or become blind each year due to a number image in the distance while farsighted with glasses. Over half of all women of leading causes such as glaucoma, pupils of the eye converge (come together) at a single point on the retina. However, if the eyeball is at all misshapen, the light rays will converge people have trouble focusing on an image and about 42% of men wear glasses. macular degeneration, senile cataract, close up. b. Approximately 30% of the Similarly, more women than men, 18% optic nerve atrophy, diabetic retinopathy, American population is near-sighted, and and 14% respectively, wear contacts. and retinitis pigmentosa. These causes at a point in front of the retina (nearsightedness), or behind the retina (farsightedness). Both situations result in blurry vision. must use glasses for activities such as d. Of those who use both contacts and account for 51% of blind people. driving and schoolwork. eyeglasses, 62% wear contact lenses more often. About 34 million, as reported in a March 2008 wear contact lenses in the United States. About 125 million Convex lenses are prescribed to correct farsightedness and concave lenses people world wide use lenses. are prescribed to correct nearsightedness. SENSING SURVIVAL The Sense of Vision