Table 6.
Anterior blepharitis | Ocular surface damage |
Crusting (61%) | SPK (100%) |
Scales | Rose bengal staining (100%) |
Lash loss (58%) | |
Lid margin irregularity (46%) | |
Posterior blepharitis | Ocular inflammation |
Oil stagnation (100%) | Bulbar injection (100%) |
Orifice abnormalities (23–53%) | Tarsal papillary change (100%) |
Meibomian foam (62%) | |
Reduced tear secretion | General signs |
Schirmer test <10 mm (35%) | Concretions |
An excess of tear debris | |
Tear film instability | Clinical associations |
Reduced BUT (100%) | Seborrhea sicca; seborrheic dermatitis with or without atopy; acne rosacea |
SPK, superficial punctate keratitis; BUT, break-up time.