What are the causes of dry eye?

Dry eye disease is not related to insufficient tear secretion, abnormal tear composition, excessive tear evaporation and other reasons.

1. Patients with insufficient tear secretion age

, diabetes, long-term use of antihistamines, and lacrimal gland damage caused by inflammation can lead to insufficient tear secretion, resulting in dry eye disease.

2. Patients with abnormal tear composition

due to trachoma lead to lack of mucin secretion, due to meibomian gland dysfunction leading to lipid deficiency, resulting in abnormal tear composition, resulting in dry eye disease.

3. Patients with excessive tear evaporation due to

dry environment, less blinking times, eyelid ectropion, eyelid entropion and other reasons lead to excessive tear evaporation, resulting in dry eye disease.