<prompt> All of the following statements are true regarding Vitamin A deficiency exceptGrowth retardation is commonFrequent infections can occurHydrocephalus is infrequentAnterior segment of the eye is initially involved  <response>: Clinical manifestations of Vit A Deficiency The most obvious symptoms of vitamin A deficiency are associated with requirement of this vitamin for maintenance of epithelial functions -Intestine -- Pathogenic attack causes diarrheaRespiratory tract -- Infections bronchial obstructionUrinary tract -- UTI and caliculiSkin -- Dry, scaly, hyperkeratotic patchesSquamous metaplasia of renal pelves, ureter, vaginal epithelium, and pancreatic salivary ducts.Poor growth because ofAbove health problems in childrenVitamin A helps in bone growth --- deficiency may retard growthThe most characteristic and specific sign of vitamin A deficiency are eye lesions. Which include night blindness, conjuctival xerosis, Bitots spots, corneal xerosis and keratomalacia. The term xerophthalmia dry eye comprises all the ocular manifestations of vitamin A deficiency.Other features are -i Skin becomes toad like phrynoderma. But it is due to associated deficiency of essential fatty acids.ii Vitamin A deficiency may rarely lead to hydrocephalus. 