Zenni’s pricing allowed me to try progressive lenses without having to spend $500. As it turns out, I was able to wear them after a short adjustment period. Where else can you get very high index, progessive lenses with an anti-reflective coating for $80 plus freight. Took 2 weeks to arrive which isn’t bad for coming from China. I may get another pair of single vision glasses as a backup in case I lose these since those would be only $12 or $17 with an anti-reflective coating. Hard to beat that.