Your symptoms:
Red eyes
A gritty, sandy feeling
It could be dry eye, a condition in which the eyes aren’t getting enough moisture because you’re not making enough tears, your tears aren’t watery enough and/or they’re evaporating too quickly, which can happen when oil-producing glands in your eyelids are inflamed. Staring at screens without blinking regularly is a culprit. “If you’re not blinking every four seconds, oil doesn’t get released and tears evaporate, leaving the eye dry and irritated,” says Dr. Marioneaux.