Meibomian glands and ocular surface inflammation

Area of Science:

• Ophthalmology
• Ocular Surface Disease
• Inflammation

Background:

• Meibomian gland dysfunction (MGD) and its inflammatory form, meibomitis, are frequently associated with ocular surface inflammation.
• The contribution of meibomitis to conditions like blepharokeratoconjunctivitis and ocular rosacea is often underestimated, particularly in pediatric cases.
• This oversight can lead to misdiagnosis, inadequate treatment, and potential visual impairment.

Purpose of the Study:

• To systematically review and analyze the role of meibomian gland disease in ocular surface inflammation.
• To highlight the significance of meibomitis as a key factor in various ocular surface inflammatory conditions.
• To introduce and define a new clinical entity: meibomitis-related keratoconjunctivitis.

Main Methods:

• Systematic literature review of publications on meibomian gland disease and ocular surface inflammation.
• Statistical evaluation of the association between MGD and ocular surface inflammation in specific conditions.
• Clinical feature analysis of meibomitis-related keratoconjunctivitis.

Main Results:

• Meibomitis is a significant factor in ocular surface inflammation across multiple conditions, including blepharokeratoconjunctivitis, ocular rosacea, and phlyctenular keratitis.
• A distinct entity, meibomitis-related keratoconjunctivitis, characterized by specific clinical features, was identified, predominantly in younger patients.
• Statistical analysis confirmed the close involvement of inflammatory MGD in the ocular surface inflammation of these diseases.

Conclusions:

• Accurate diagnosis and management of meibomitis are essential for treating associated ocular surface inflammation.
• Meibomitis-related keratoconjunctivitis represents an important clinical consideration, especially in pediatric ophthalmology.
• The "meibomian gland and ocular surface" (MOS) unit should be viewed holistically in clinical practice.