it's a good quality item

The prism product was perfect for correcting my driving glasses.

I highly recommend buying and cutting these to size as and-user, and saving about $14 per lens. These are very easy to use and if you ever played with paper dolls you have all the skills you'll need!

Quick delivery. Easy to fit into glasses.

This product is amazing. I can finally see good again. They are easy to install.

It works as it should for my double vision.

Prism was exactly as I expected shipping was fast super satisfied after this review I’m going to order another one. Thank you so much for offering. Such a great product.

They are great!

The press-on's for my vertical diplopia are working just fine..

Good, arrived as described. Note that I am not using them to stick on glasses, but to affix them to telescope binoviewing eyepieces to correct for slight misaligment of the observer's eyes (or of the binoviewer prisms) at hight magnification (over 50x). Interestingly, the image degradation caused by the Fresnel lenses is less than expected. Of course this review is of potential interest mostly for astronomers.

Excellent adhesion to glasses and stays put. Just clean lens and dry completely. Easy to trim to fit lens shape.

I love the fact that I can get them for much less than from the doctor. It is very easy to cut and adhere them to my lense. Great product for someone like me with horizontal double vision as a result of myasthenia gravis.
Thank you for prompt service.
Bruce

Very good product! My elderly mother has double vision and this product helps her tremendously.

ok

Safari on IPhone kept default to 1 prism when I thought I pressed 15 D, seems like a software glitch and ended buying a 1 and a 15D. Slightly disappointed

They work great. I wish they stuck to my non-glare plastic 'sunglasses' a bit better. But the most important thing is they do the job intended.

I bought two, one of them work perfectly but the other one does not work at all. I am still havingdouble vision. I have a feeling that it is not 7 diopter.
Wanted to ask for refund But I am in Singapore. Not worth the time, effort to ask for it. Not worth getting my heart beat faster with no reply

The fresnel prisms are excellent for making sure the prism diopter power is correct and for making adjustments. They are easy to apply and don’t have the distortions that prison lenses can have. I’m very happy with Good-Lite’s products, service and shipping.

Work as intended, excellent 3M quality.

Highly recommended worked great

Perfection. Fast delivery and these work great!!!

This company has quality items and fast, accurate shipping. Not my first order, and won't be my last!

I like it very much. however I got a 15 diopter and I actually need a 16 diopter. Can you help me out with this?