A study of Perfluorohexyloctane eye drops combined with meibomian gland massage for rosacea-associated dry eye disease

INTERVENTION: Control group:Receive meibomian gland massage once every 2 weeks for a total of 4 weeks, and administer 0.1% sodium hyaluronate eye drops to both eyes, 4 times daily for 8 weeks.;Intervention group:Receive meibomian gland massage once every 2 weeks for a total of 4 weeks, and administer perfluorohexyloctane eye drops and 0.1% sodium hyaluronate eye drops to both eyes, 4 times daily, for 8 weeks; CONDITION: Rosacea‐associated dry eye disease PRIMARY OUTCOME: Ocular Surface Disease Index; SECONDARY OUTCOME: Meibomian Gland Expressibility Score;Tear Film Lipid Layer Thickness (LLT);Meibomian Gland Secretion Quality Score;Schirmer I test;NIBUT;Changes in the corneal fluorescein staining score compared to before treatment;Adverse events; INCLUSION CRITERIA: 1.Meet the diagnostic criteria for rosacea‐associated dry eye disease; 2.>=18 years old; 3.Willing and able to provide written informed consent and to comply with the study protocol;