My dry eyes are severe.

My dry eyes are severe.

Not only are the eyes simply dry, but also

There is pain.

I'm scared because it's the first time I feel this pain.

I had a glaucoma test because of severe pain, and the results came back normal.

I was diagnosed with dry eye syndrome as the cause of my pain, and I am applying artificial tears.

There is no significant improvement.

Is there a fundamental way to treat it?