“Dry eye is a multifactorial disease of the tears and ocular surface that results in symptoms of discomfort, visual disturbance, and tear film instability with potential damage to the ocular surface”, International Dry Eye Workshop definition 2007.
It can affect up to a third of the general population to a greater or lesser extent.
Dry eye disease is becoming more common as a result of worsening air pollution, laser eye surgery, and more work being done at computers.
Dry eye disease may affect all ages and have a marked impact on quality of life
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