Not knowing for sure what eye focal problems you may have, I can only offer this:

I wear progressive bifocals and have no problem with tying. What you might try doing is changing the height of your vise. You may be trying to focus with your new glasses at the same height that you used with your old glasses. Experiment with the height of your vise and see if that helps before spending more money.

The above may not make any difference, but, it will not cost you anything to find out...

Just a thought and nothing more...