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Dry eye syndrome can lead to blurred vision, instability of the tear film, increased risk of damage to the ocular surface such as scarring of the cornea, and changes in the eye including the neurosensory system. [2] [6] Dry eye occurs when either the eye does not produce enough tears or when the tears evaporate too quickly. [2]
Characteristic dryness appears at a number of locations, such as the tongue, face, and eyes. Marked at left are the salivary glands (which may be swollen), not a facial rash. The hallmark symptom of Sjögren syndrome is dry mouth and keratoconjunctivitis sicca (dry eyes). [16] Vaginal dryness, dry skin, and dry nose may also occur. [16]
Xerophthalmia (from Ancient Greek xērós (ξηρός) meaning "dry" and ophthalmos (οφθαλμός) meaning "eye") is a medical condition in which the eye fails to produce tears. It may be caused by vitamin A deficiency, [1] which is sometimes used to describe that condition, although there may be other causes.
Characterised by persistent, asymptomatic bilateral swelling of parotid glands, and may represent as a manifestation of more widespread systemic disease. Dry eyes and dry mouth are commonly present and may be indicative of concomitant connective tissue disease (e.g. systemic lupus erythematosus [SLE], rheumatoid arthritis [RA], or scleroderma).
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The theory explains why labyrinthine-defective individuals are immune to motion sickness; [31] [32] why symptoms emerge when undergoing various body-head accelerations; why combinations of voluntary and reflexive eye movements may challenge the proper operation of Sherrington's Law, and why many drugs that suppress eye movements also serve to ...
A few short bursts of exercise throughout the day may reduce heart disease risk by 50%, according to new research. Women specifically showed the most pronounced effects of short bursts of activity ...
Meibomian gland dysfunction is more often seen in women and is regarded as the main cause of dry eye disease. [ 14 ] [ 15 ] Factors that contribute to meibomian gland dysfunction can include things such as a person's age and/or hormones, [ 16 ] or severe infestation of Demodex brevis mite.