OPHTHALMOLOGY AND OPHTHALMIC NURSING-DISORDERS. Blepharitis is an ocular condition characterized by chronic inflammation of the eyelid margin. Inflammation of the eyelid is known as blepharitis. Blepharitis is a common eye disorder caused by bacteria or skin conditions. Write causes of blepharitis Bacterial infection (staphylococcus) Malfunctioning of oil gland in the eyelid Allergies Skin conditions Seborrheic dermatitis, Rosacea Dandruff on scalp Environmental Factors Hormonal factor Write clinical manifestations of blepharitis Red,