Demodex blepharitis: White arrows denote cylindrical dandruff at the base of the lashes, while the black arrows show live Demodex mites under 100X magnification. Kabat A. 1
Demodex associated blepharitis is extremely prevalent, particularly among older individuals. While virtually all of us have some Demodex mites, symptoms may start to appear when the population reaches a critical mass and there are more organisms living in the tissue. Many patients will present with non-specific ocular irritation including burning of the eyes, itchy eyelids, redness, swelling, and debris on their lashes.