federal definition [10] of blindness in the Supplemental Security Incomeprogram under. Title XVI of the Social Security Act currently states: (2) An individual shall be considered to be blind for purposes of this title if he has central. visual acuity of 20/200 or less in the better eye with the use of a correcting lens. An eye.
Headache (Definition) The medical term is cephalalgia. It is a feeling of pain that can occur on either both sides or just one side of the head or neck. Headaches can be sharp, dull, or throbbing, and can radiate to different areas of the head. They typically last less than an hour but can last for several days.
A migraine is a headache with throbbing pain that is usually worse on one side of the head. The pain is often severe enough to hamper daily activities and may last from four hours to three days if untreated. More than one in 10 Americans, including one in 6 women, have migraines, but many have been told mistakenly that they have a sinus or tension headache. Foods, stress, and hormones can be migraine triggers.