Mask Eye occurs when you are wearing a mask and your breath escapes from the top of your mask and goes onto the top of your eyes, thereby, drying them more frequently, leading to a grainy sensation and your eyes may look sore.
How To Prevent This
Make sure that your mask fits properly so that as you breathe out, the air escapes through the sides of the mask and not from the top.
Blink your eyes frequently and closing your eyes tightly every 20 minutes helps to lubricate the eyes. If required, use eye drops.
For those suffering from foggy spectacles, make sure that your glasses fit properly and that your breath is not coming out from the top of your mask. You can cross the ear loops of your mask if it is too loose. Spray anti-fog spray onto your spectacles to prevent fogging.