Zenni Optical and Warby Parker have drastically reduced the cost of eyeglasses. After a recent glaucoma drain implant I developed good but double vision. With information from the internet I used my eye doctor’s prescription to get single vision normal, reading, and computer glasses with prism lenses from Zenni. They look great, fit fine, and apparently are true to the prescription. The most expensive pair was $39.92. Zenni charges an extra $9.85 for prism lenses. COSTCO charges $160 for prism lenses.
One of these days, the same thing is going to happen to hearing aids. My year old hearing aids bought on-line for a little less than $350 each are so much better than my $3000 pair it is difficult to believe.