I saw this deal at Sam's club for $40 off new Prescription Eyeglasses (without Vision Insurance) when a frame and lenses are purchased.
It says membership is required, but I was able to do it without getting a new membership.
For kids, lenses were $29 for basic PolyCarbonate & $49 with UV, Anti-glare and scratch-resistant coatings.
We got a $40 frame, so the frame was effectively free and we only paid for the lenses.
Attached pic for the deal as displayed there. End tomorrow 7/17/2016
My Amex did not have the free Sams membership offer. We walked in to see the frames/styles etc, and they apparently had a temp membership card that she used to give me the discount & I was happy not having to buy the membership.
We have tried ZenniOptical dot com and have been fairly pleased for regular glasses, but we wanted a kids RecSpecs and this Sams deal was the best.