Disease Information for Hypovitaminosis A

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Clinical Manifestations
Signs & Symptoms
Coarsening skin
Dry brittle hair/Lank lifeless hair
Dry skin/scaling dry skin
Fissuring palms/soles
Follicular hyperkeratosis
Follicular plugging/broken hair/coarse skin
Hyperkeratosis/palms and soles
Phrynoderma/toadskin sign
Anorexia Decreased appetite
Poor weight gain/child
Growth/development delay
Absence of tears/on exam
Bilateral Vision Loss
Bitots spots/conjunctival foamy patches
Corneal dryness/irritation
Dry eyes/poor tearing
Dryness Conjunctiva
Eye symptoms/signs
Grainy/Gritty Eye Sensation
Inspissated secretions/mucus eye
Night blindness/Impaired night vision
Visual Problems
Demographics & Risk Factors
Ethnic or Racial Factors
Asian Indian population
Established Disease Population
Patient/Jejunocolic bypass
Patient/Sprue/gluten enteropathy
Population Group
Population/Immigrant population
Laboratory Tests
Abnormal Lab Findings - Decreased
Carotene/Vitamin A level (Lab)
Plasma Retinol
Plasma Retinol Binding Protein
URINE Retinol binding protein
Abnormal Lab Findings - Increased
Hemoglobin (Lab)
Diagnostic Test Results
Electrodiagnosis
Electroretinogram abnormal
Associated Diseases & Rule outs
Associated Disease & Complications
Anemia
Blindness
Growth retardation/failure
Keratomalacia
Vitamin A deficiency/Avitaminosis A
Xeroderma
Xerophthalmia
Disease Mechanism & Classification
Pathophysiology
Pathophysiology/Mucosal keratinization
Pathophysiology/Dark adaptation/vision defect
Process
PROCESS/Deficiency (category)
PROCESS/Fat soluble vitamin deficiencies (ex)
Treatment
Drug Therapy - Indication
RX/Vitamin A
Definition

A nutritional condition produced by a deficiency of VITAMIN A in the diet, characterized by NIGHT BLINDNESS and other ocular manifestations such as dryness of the conjunctiva and later of the cornea (XEROPHTHALMIA). Vitamin A deficiency is a very common problem worldwide, particularly in developing countries as a consequence of famine or shortages of vitamin A-rich foods. In the United States it is found among the urban poor, the elderly, alcoholics, and patients with malabsorption. (From Cecil Textbook of Medicine, 19th ed, p1179)

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External Links Related to Hypovitaminosis A
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PubMed (National Library of Medicine)
NGC (National Guideline Clearinghouse)
Medscape (eMedicine)
Harrison's Online (accessmedicine)
NEJM (The New England Journal of Medicine)
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