Question

how to comfortable in the digital classes for teaching and learning​

Answer 1

Answer:

it is very convenient and effective

Answer 2

Your eyes should be far from your screen.

Avoid looking at the screen continuously.

Turn on the blue light filter.

Try blue block lenses.

Adjust the brightness to 50 %.

Avoid using headphones.

Maximise the allowance of natural light in your home so that you don't you're less dependent on artificial lighting.

Don't let it be dark.

:-)