That's very common, you use weaker glasses for near work then, so around -6 or -6.5 depending on your distance from your screen.
You can find more information on that on the endmyopia page or wiki by looking for "differential glasses"
You can find more information on that on the endmyopia page or wiki by looking for "differential glasses"
Zenni Optical also offers custom prescriptions, but is more expensive (likely still a lot cheaper than your local optician).
But you can totally also get glasses with a lower prescription from your regular optician, but as you will relatively frequently need new glasses, that can get expensive (at least here in Germany it would, and I heard in the USA glasses cost up to $1000).