Morphological and Functional Evaluation of Meibomian Gland Dysfunction in Rosacea Patients
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Anna Machalińska1,2, Aleksandra Zakrzewska1,2, Agnieszka Markowska3
1a Department of Histology and Embryology , Pomeranian Medical University , Szczecin , Poland.
Purpose:
Skin rosacea is a chronic inflammatory disease affecting up to 10% of the population in some European countries. Although considered a skin disease, acne rosacea may involve the eyes, causing eyelid and ocular surface inflammation. This study investigated the relationship between skin rosacea and various signs of ocular involvement and evaluated severity of meibomian gland dysfunction in rosacea patients.
Methods:
The ocular surface and meibomian gland parameters were evaluated in 41 patients with diagnosed skin rosacea and 44 age-matched healthy controls. We analyzed meibomian gland function (meibum quality and meibum expressibility) and morphology (meibography) and lid margin alterations. We correlated our findings with self-reported ocular symptoms and tear film abnormalities (tear film breakup time, Schirmer test).
Results:
The prevalence of ocular erythema and lid margin alterations was significantly higher in rosacea patients compared with controls. We found that rosacea is accompanied with significant loss of meibomian gland tissue defined as reduced meibomian gland area and decreased meibomian gland density. A positive correlation between margin abnormality score and the extent of meibomian gland loss in rosacea group was observed (rs = +0.30, p = 0.005), suggesting that ocular rosacea is accompanied by meibomian gland dropout.
Conclusion:
Skin rosacea is associated with ocular erythema and lid margin abnormalities. Our results suggest that ocular signs of rosacea may influence meibomian gland morphology, causing meibomian gland loss.
