I am 80+, have a brother with celiac and was well until an acute autoimmune illness at Xmas 2009 possibly following flu. After extensive rather inconclusive hospital tests this seemed to be resolving on multivitamins and minerals only, apart from persistent anaemia. Tests for celiac were carried out at my request at the end of 2012: antibodies +, biopsy + (Marsh 2). Strict gluten-free diet from Jan 1st 2013. From 2010 to present I have had 15 episodes of temporary loss of central night vision usually lasting a few days and looking like a dark C or its lower part, about 20º wide and different in the two eyes. I thought it must be due to vitamin A deficiency but it did not respond quickly to extra vitamin A and one blood test showed a normal level. On April 26th 2013 after a fish buffet night vision recovered completely but failed again slightly next day. In the latest episode lasting 9 days it improved after eggs on 2 successive days and resolved completely after one 1000mg cod liver oil capsule. This suggests that it might be due to malabsorption of omega 3 fatty acids, possibly DHA. Has anybody else out there had similar symptoms and are they indeed a useful indication of persistent malabsorption despite the gluten-free diet?