A very common condition in which the lids are swollen, red, itchy and has dandruff-like scales on the eyelashes. This condition frequently occurs in people who may have a tendency towards oily skin, dandruff, or dry eyes. patients who suffer from blepharitis will typically have both upper and lower eyelids become coated with oily debris and bacteria near the eyelashes. The eye feels irritated and may become inflamed. Regular, through cleansing of the lid margin helps control blepharitis.