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xerophthalmia

n. excessive dryness of the eyes, due to histological changes in the cornea and conjunctiva. Xerophthalmia is a characteristic symptom of Sjögren’s syndrome, a systemic autoimmune disease with an onset between 40 and 65 years. Xerophthalmia is also one of the ocular effects of vitamin A deficiency.

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Psychology term of the day

June 17th 2024

CF

CF

1. abbreviation for characteristic frequency. See tuning curve.

2. abbreviation for cumulative frequency.