A stem on my $400 prescription progressive-lens glasses broke at a time when I didn't (and still don't) have money to spare for new frames. As my prescription was +2.75 for reading but plain/clear for the rest of the lens, I wondered if I could find +2.75 bifocals on Amazon. I loved the look of these glasses as pictured on line, and at such reasonable price for two pairs, I figured that they were worth trying out.I am amazed at how well they serve their advertised purpose. I can look down and read with ease and still look up from my reading without having to remove the glasses because the upper 2/3 of the lens is plain and, therefore, not blurry. In addition, the glasses fit well and the frame style is sharp. I have been happily wearing these glasses for almost two months now, and although I will eventually purchase new prescription glasses, I am in no hurry to do so, as these YOGO bifocals are exceptional substitutes.