Optx 20/20 Stick-On Bifocals, +125

Well, been old for a while, but now there's proof based on my Amazon purchase history. But regardless of the march of time, this has proven to be a very handy product. I use it with my current glasses (put them on a spare pair) for reading small print, such as newspapers and some magazines (which, for some reason, always seem to want to print things in 8 or 9 point type when it's clear that most of their readers are well over the age where they can read such small type. Then they wonder why circulation is falling.) Sorry for going off on a tangent. Back to the stick on lenses. They work great. Had no problems putting them on my glasses. The pack did not come with directions, but directions were available on the manufacturer's web site. Basically, clean your glasses well with very warm water, then soften the stick on lenses with warm water, stick them on, push out any air bubbles, and let them dry. The lens have a curved side which is the side you want to affix to the glasses. So far zero problems with them coming off. Clarity is excellent. They are noticeable on regular glasses - I expect they would not be noticeable (or hardly at all) if you used them with sunglasses. Lot less expensive them progressive lens and, for me, work just as well. I can clearly read the newspaper again! Highly recommend.

I bought a 2nd pair of these for another set of these for my sunglasses when I lost one side of my old ones. The new ones don't stick at all. And no returns on this product. The first pair work fairly well. But I've zero confidence in buying or recommending these. They are junk.

These worked well but would loosen and the become blurry. I still think they are better than wearing readers over my sunglasses. I will buy the next level up when needed. I don't have them on my glasses now because they are a smaller lense and become distracting.

I like to use these on my safety glasses. They stick on pretty good, and I am able to see through them, but not as good as a regular reading lense. Seems like they could be cheaper, but then I bought them, so I guess until someone else makes them for less, that is what we will pay for them.

I have used these lenses for 7 months now, and I am very pleased with them. I put mine on a pair of 1.75 diopter reading glasses to make my own bifocals. So for distance I have the 1.75 correction and for reading I have 3.00 correction. They work just as well as the prescription bifocals I replaced, at a much lower cost. I trimmed the bottom edge of mine so that it followed the rim of the glasses better. They were very easy to trim with a good, sharp pair of scissors. I wet the lens and placed it on the corresponding lens of the glasses. I used plenty of water so that the lens floated until I had it in the position I wanted it. Then I pressed the water out from under it, dried the glasses off, and have used them since with no problems. I drop my glasses too much and these lenses have never loosened or come off. I did notice the right lens developed a bubble in the center after a few months, but I just peeled it off and re-stuck it. The left lens has stayed completely sealed all the way across.

I installed these inserts in my nice new sunglasses, cleaning them well and following proper procedure. Left the house to go do a few outdoor things then a few hours later I notice one is in my lap while driving the car and the other is completely missing. I'm a very particular person when it comes to details when using products like this but these failed 100%. Will not buy again. (I'm forced to select one star since I cannot select no stars)

While these do what they claim to do, they are difficult to trim to size. The edges tend to pick up reflections, making them very distracting. Overall, perhaps a temporary solution to bifocals, but by no means a true replacement. Also, not a terribly good value for a couple small pieces of plastic.

This product has exceeded my expectations. I cut the lens in half to fit my sunglasses better and positioned the lenses on the inside of the lenses on the sunglasses. The first time I mounted the lenses the one fell off. This was probably due to me cutting it uneven. I cleaned the sunglasses lens better and mounted the optical lens back on the sunglasses. So far it has held in place without a problem. I work outside a lot and I really like that I don’t have to keep switching back from my sunglasses to readers anymore.

Garbage for diving mask

I bought these to add to my Cressi Dive mask. I noted in the description that they could be trimmed to fit but was hoping I wouldn't need to. but they fitted perfectly. On land they work a treat, haven't tested underwater yet but I'm sure they will be fine. Simply to fit to the original lense and once allowed to dry fully they're attached firm.

C'est la troisième paire que j'utilise. Il faut impérativement bien lire les instructions de positionnement et respecter les consignes. Si ces conditions sont respectées, le produit est simplement parfait. A la longue, les bords se "décollent" un peu, il suffit alors de retirer les Hydrotac, bien nettoyer le support (les verres des lunettes de soleil, le masque de plongée, ...) et recommencer le positionnement comme au premier jour. Les critiques négatives proviennent de personnes qui n'ont pas lu les consignes ou ne les appliquent pas; dans ce cas là, effectivement, les Hydrotac ne tiennent pas en place, car la procédure doit être appliquée à la lettre.

Lenses work well. I use it in my diving mask. Easy to loose after rinsing. Need some glue for use in water conditions.

Now I can clearly read my dive computer 🤓