Routine preventive care is the best way to manage dry eye, much like brushing your teeth reduces the risk of plaque and gingivitis.
Those 4 habits are:
1) Eyelid warm compresses daily
2) Cleaning the lids and lashes twice a day with a lid cleanser (soap and shampoo are okay, but there are gentler products made for use around the eyes)
3) Blink every 3-4 seconds
4) Preventive lubrication – you can use a lubrication drop BEFORE TV, reading, driving, phone use, etc.