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Xerophthalmia - Coggle Diagram
Xerophthalmia
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CMx
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Bitot Spots (X1B) - whisting, desquamated, keratinized epithelial cells, happens in the temporal conjunctiva
Xerosis conjunctiva - dull and dry appearance of the conjunctiva, loss of goblet cell
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Pathophysiology
impairment of rod function, leading to defective vision in dim light or nyctalopia.
The rhodopsin system in the rod cells of the retina is much more sensitive to Vitamin A deficiency than the iodopsin system of the retinal cone cells.
Vitamin A is a fat-soluble Vitamin, the main source for maintaining epithelial cellular integrity
Management
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Medical
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Phys. exam - visual acuity, visual field
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