No, these types of glasses only make you think you see better and actually reduce the total amount of light you see. The best kind of glasses to wear are prescription lenses with an anti-reflective coating on them.
Yes, you could use Windex glass cleaner. Just spray straight onto a paper towel, and then clean the screen with that paper towel. You don't want to spray it directly...
Your mother is being very immature and should not be acting this way. Glasses are an important need and not something to play around with. Talk about this to your...
Honestly, I'd just recommend trying a few different pairs out. I think +1.50 is good for the computer, and +2.50 is generally a solid choice for reading, but it doesn't...
If you find yourself squinting in normal light conditions just to see better, it could be a sign that you need glasses (or better glasses if you already wear them).