Blood tests. The diagnosis is based on symptoms and a low level of vitamin A in the blood. If people have problems seeing in the dark, eye tests, such as electroretinography (see Tests for Eye Disorders: Electroretinography), may be done to determine whether vitamin A deficiency is the cause.isorders that impair the intestineâs absorption of fats can reduce the absorption of vitamin A and increase the risk of vitamin A deficiency. These disorders include chronic diarrhea, celiac disease, cystic fibrosis, certain pancreatic disorders, and blockage of the bile ducts.
Shaun Carl Micheel (born January 5, 1969) is an American professional golfer who is best known for his surprise victory at the 2003 PGA Championship. Micheel was born in Orlando, Florida. He attended Christian Brothers High School in Memphis, Tennessee and Indiana University and turned professional in 1992.
Shaun Tan is an illustrator and author born 1974 in Fremantle, Western Australia.He studied in âBalcatta Senior High Schoolâ and was known there as the âgood drawerâ and âthe most talented artistâ.e has also used many artists and illustrators as an inspiration for his works. These include Ron Brooks, Joseph Cornell, Milton Glaser, Michael Leunig, Gerald Scarfe, J. Otto Siebold, Lane Smith, Brett Whitley, Fred Williams, Rene Magritte, Peter Sis, Fred Williams and many more.