Eyes become dry, tired and sore if you are not producing enough tears or you have poor-quality tears.
Central heating, air-conditioning and computer use can make it worse.
Many adults suffer with dry eyes due to a health condition or medication.
Lubricating eye drops can soothe irritation and reduce discomfort. You may find taking omega-3 supplements helps over time.
Drink plenty of water and remember to blink often. If your eyes are persistently dry, tell your optometrist.