RT Book, Section A1 Saunders, Katherine H. A1 Igel, Leon I. A2 Papadakis, Maxine A. A2 McPhee, Stephen J. A2 Rabow, Michael W. A2 McQuaid, Kenneth R. SR Print(0) ID 1184163046 T1 Vitamin A Deficiency T2 Current Medical Diagnosis & Treatment 2022 YR 2022 FD 2022 PB McGraw-Hill Education PP New York, NY SN 9781264269389 LK accessmedicine.mhmedical.com/content.aspx?aid=1184163046 RD 2024/04/23 AB Vitamin A deficiency is one of the most common vitamin deficiency syndromes, particularly in developing countries. In certain regions, it is the most common cause of blindness. In the United States, it is usually due to fat malabsorption syndromes or mineral oil laxative abuse and occurs most commonly in older adults and patients with malabsorptive conditions.