Dry eye refers to the disorder of tear film stability caused by abnormal quality and quantity of tears or abnormal dynamics for any reason, which leads to eye discomfort, ocular surface damage and visual impairment, also known as keratoconjunctivitis sicca, dry eye and tear dysfunction syndrome.

If it is dry eye caused by environmental factors, sunglasses can be used outdoors to reduce the influence of sunlight, wind and dust, and at the same time, indoor air can be purified and humidified, contact lenses and drugs that may cause dry eye can be stopped. People with meibomian gland blockage can be massaged.

In addition, according to the severity of dry eye, medication can be given as follows:

Mild dry eye: artificial tears during the day and eye ointment at night;

Moderate dry eye: it is recommended to use artificial tears without preservatives and 0.05% cyclosporine A, and lacrimal duct embolization can be considered;

Severe dry eye: in addition to the above measures, autologous serum, glucocorticoid, eyelid margin suture and scleroscope can be added.

With regard to prevention:

Dry eye caused by specific diseases may not be effectively prevented, but dry eye caused by environmental factors can be prevented by the following measures:

Don't stare at the same place for a long time. If you don't watch TV/computer for a long time, blinking more will help keep your eyes moist.

Avoid sitting directly in front of cold air or hot air, and don't let the air conditioner blow your eyes directly.

Use a humidifier in your bedroom and anywhere you stay for a long time.

Avoid smoking and stay away from the smoky air.

Wear goggles when going out to reduce the influence of external dust and dry air.