A computer screen is further away than a book, so reading glasses that are right for a book often make a monitor blurry. Computer glasses use a slightly lower strength so that 50 to 70cm is sharp.
As a rule of thumb, computer glasses are about half a dioptre to three quarters of a dioptre weaker than your reading strength. If you read with +2.00, try +1.25 to +1.50 for a desktop screen.
Blue light filtering lenses are popular, but the current evidence does not show that screen blue light damages the eyes or that filters reduce eye strain. Most screen eye strain comes from focusing effort and blinking less. The right strength, regular breaks and the 20-20-20 rule (every 20 minutes, look 20 feet away for 20 seconds) make the bigger difference.
If you are short-sighted and wear distance glasses, computer-distance lenses are slightly weaker than your full distance prescription, which relaxes focusing at desk distance.
You can, but you will probably have to lean in. A slightly weaker pair works better for screens.
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