1. For those who often work in front of a computer screen, it is advisable to lower the computer screen so that the eyes look downward, reducing the exposed area of the lid fissure and thus reducing the evaporation of tears. Change the habit of blinking less because of concentration. It is better to blink 15 to 20 times per minute to facilitate the formation of tear film on the eye surface. 2. Wear silicone eye shields, wet room goggles or scuba goggles to provide an airtight environment to reduce air flow over the eye surface and evaporation of tears to preserve tears. 3. Hot compresses and lid gland massage: a clean hot towel at 40-45°C for 5 to 10 minutes twice a day, and lid gland massage: massage the lower lid with the eyes looking upwards, using a sterile cotton swab or clean index finger to press with appropriate force towards the eyeball, and similarly, massage the upper lid with the eyes looking downwards. 4, eat more foods rich in vitamin A, such as carrots, beans, animal liver; eat less spicy fried and fatty sweet things, and quit smoking and drinking.