In simple words: Ulcerative blepharitis of the right upper eyelid is an infection of the eyelid that causes sores and crusting around the eyelashes.

Inflammation of the right upper eyelid characterized by the formation of small abscesses in the eyelash follicles that break down to form shallow ulcers on the eyelid margin. This condition is often caused by a bacterial or viral infection.

Example 1: A 10-year-old child presents with redness, swelling, and crusting around the eyelashes of the right upper eyelid. Small ulcers are observed on the eyelid margin. The diagnosis is ulcerative blepharitis., A 35-year-old adult with a history of recurrent staphylococcal infections develops ulcerative blepharitis of the right upper eyelid, confirmed by bacterial culture., An elderly patient experiences crusting and ulceration of the right upper eyelid following a viral infection. The diagnosis is ulcerative blepharitis.

Documentation should include the location and laterality of the blepharitis, presence of ulcers, associated symptoms (e.g., redness, swelling, crusting, discharge), and any causative factors identified (e.g., bacterial or viral infection).