Dry eye disease (DED) 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. It is accompanied by increased osmolarity of the tear film and inflammation of the ocular surface.
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International Clinical Diabetic Retinopathy and Diabetic Macular Edema Disease Severity Scales
The levels in this new diabetic retinopathy disease severity scale consist of five scales with increasing risks of retinopathy.