Does a fever cause blindness

What causes flat feet? What type of stress triggers a flight or fight reaction? Is it necessary to pull a tooth if the nerve is dead? How can I tell if I have scalp psoriasis and how can I treat it? Can bad eyes give you headarche? When you stare at a picture for a long time it does not fade away because your eye is making tiny eye movements that are called glissades? Can someone be diagnosed with sickle cell in adulthood? Where is the third or fourth lumbar on your spine? Can Post traumatic stress disorder cause epilepsy? I can't decide what color to dye my hair? Does lisinopril cause ed? Scientific name of malaria parasite? A person who studies water and its properties? What is low blood pressure that occurs from standing up called? The dangers of cigarette smoking in addition to lung cancer? What two things is the skeletal system made up of? What is Frontotemporal lobar degeneration? What is the genotype for the type AB parent? Is it common to have period cramps with no period even though I had an early period 2 weeks ago from missing birth control pills or does cramping with no period point to pregnancy? How did polio affect President Roosevelt's character and physical abilities?