Hello There are many reasons for this most common cause is dryness try a.cold compresses b. use lubricants consult local ophthalmologist for detailed evaluation

If no other complaints such as blurring of vision or eye redness or discharge or swelling, can try some external warm compresses. Best to see a doctor if problem persists.

If there is pain in moving your eyes, and there is redness in the white area also, along with some discharge from the eyes, then we can suspect Scleritis, for which you should visit the clinic for detailed examination. If there is pain in moving the eyes, but no readiness, and if you remain on digital devices for long, then probably your eye muscles are fatigued and require rest, or your eyesight might require evaluation. If there is pain in moving the eyes upwards and inwards, and you’re experiencing diminution of vision, then we will suspect a disease called Optic Neuritis, for which you should immediately seek treatment. (After a fundus examination at the clinic)

It can be due to eye strain. If you have had cold/fever/sinusitis recently it can cause eye pain too.

Could be dryness or asthenopia. Kindly get an online consultation to address all your concerns

Dryness is the common cause

Pl consult ophthalmologist for further evaluation and treatment.

Please consult for detail evaluation

There are multiple reason.  Please consult online to address your concerns