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.
The Myths: 1  Migraine is just a headache. A migraine is a type of headache, but when someone truly has one, the pain theyâre experiencing can be substantially more severe. 2  All headaches are migraine. While the word âheadacheâ may sound like a catch-all umbrella term, there are many different types of headaches. 3  Migraine is my fault.