Hello There could be some foreign body in eye or there may be some lid infection Try A. Hot fomentation B. Share close up pic for evaluation

For confirmation of diagnosis a picture of the ey would help. It may also be a stye infection of the glands of the eyelid. Usually stye is associated with pain.

We need picture to confirm As per your symptom it looks like meibomian(eyelid gland)occlusion with dry eye Need to start lacryl ultra eye drop 4/day And osmega 300 mg capsule one capsule per day for 2 months Need to do warm compression of Both eyes twice a day There is a device caller thermopulsion which you can use for that