[Chinese expert consensus on meibomian gland dysfunction: definition and classification (2023)].

Meibomian gland dysfunction (MGD) is a common clinical ocular surface disease. In recent years, great progress has been made in basic and clinical research on MGD, and new diagnostic and therapeutic methods have been continuously applied to clinical practice. To improve the understanding of MGD among Chinese ophthalmologists and standardize the diagnosis and treatment of MGD, the Chinese Branch of the Asia Dry Eye Society and relevant academic groups organized experts to discuss the definition and classification of MGD based on recent research progress and clinical experience at home and abroad, forming consensus opinions for the reference of clinicians.