Hi Alexandra, welcome to IIS
Another thing you could consider is to get yourself a camera such as the GStar EX and have a TV/computer monitor to do your observing with. The GStar is, in effect, a specialised video camera for astronomical use. You can send the images you get through the scope either through a laptop or directly to the screen you're using. That way, no more eyestrain, plus you can also take piccies of what you're looking at too
