
Mental Retardation
Mental retardation is a condition diagnosed before age 18 that includes below-average general intellectual function, and a lack of the skills necessary for daily living. More »
Nearsightedness
Nearsightedness is when the eyes focus incorrectly, making distant objects appear blurred. More »
Sunken Chest
Pectus excavatum describes an abnormal formation of the rib cage that gives the chest a caved-in or sunken appearance. More »