  blepharitis ( ) is an eye condition characterized by chronic inflammation of the eyelid, the severity and time course of which can vary. onset can be acute, resolving without treatment within 2â4 weeks (this can be greatly reduced with lid hygiene), but more generally is a long standing inflammation varying in severity. it may be classified as seborrhoeic, staphylococcal, mixed, posterior or meibomitis, or parasitic. == symptoms == thumb|chalazion signs and symptoms that are associated with the chronic inflammation include: * redness of the eyelids * flaking of skin on the lids * crusting at the lid margins, generally worse on waking * infection of the eyelash follicle/sebaceous gland (hordeolum) * red eye * debris in the tear film, seen under magnification (improved contrast with use of fluorescein drops) * gritty sensation of the eye or foreign-body sensation * eye itching the lids may become red and may have ulcerative, non-healing areas which may actually bleed. blepharitis does not tend to cause problems with the patient's vision whatsoever, but due to a poor tear film, one may experience blurred vision. eye redness and swelling tend to appear in more advanced cases, and they are rarely primary symptoms. the symptoms can slightly vary based on the exact cause of the condition. blepharitis due to an allergy can cause dark lids, a symptom which is known as "allergic shiner" and which tends to be more frequent in children rather than adults. infectious blepharitis is accompanied by a yellow- or green-colored discharge which is more abundant in the morning and which leads to stuck lids. blepharitis may also cause eyelid matting or "gluing" of the lashes. other blepharitis symptoms include sensitivity to light, eyelashes that grow abnormally or even loss of eyelashes. also, the tears might seem frothy or bubbly in nature and mild scarring might occur to the eyelids. the symptoms and signs of blepharitis are often erroneo
Disorders_of_eyelid,_lacrimal_system_and_orbit Inflammations