I don’t wear glasses personally, but I know how much of a problem cleaning your glasses can be. I know that because all my friends have glasses and I see the smudges in them. No wonder they think they have bad eyesight. They are looking through smudged glasses! I can’t blame my friends though. It’s hard to actually clean your glasses without just smearing oil and grease around. It’s not like we carry around pristine handkerchiefs all the time.
I don’t think you should spare any expense when it comes to your vision. If that takes buying tiny little brushes to wash your glasses, I say go for it. Don’t let your smudged glasses fool you into thinking you see worse than you actually do. You won’t believe your eyes after you use this product.