Dry eyes can occur from conditions such as:
* Aging
* Dehydration
* Corneal ulcers and infections
* Eye infections (for example conjunctivitis)
* Vitamin A deficiency
* Sjögren's syndrome
* Secondary tearing deficiency (associated with disorders such as - lymphoma, leukemia, GVHD (graft vs. host disease, after a transplant), and rheumatoid arthritis)
The inability of tears to drain into the nose can occur with:
* Some eye infections
* Blockage of the tear duct
Adapted from the Wikipedia article Schirmer's test, under the G. N. U. Free Documentation License. Please also see http://en.wikipedia.org/wiki
Schirmer’s test – Eye dryness
Dry eyes can occur from conditions such as: * Aging. * Dehydration. * Corneal ulcers and infections. * Eye infections (for example conjunctivitis) * Vitamin A deficiency. * Sjögren's syndrome.
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