OPTX 20/20 Hydrotac Stick-on Bifocal Reading Glasses

I’m a scrub nurse and needed them on my goggles. They were a bit bigger than I wanted but once I got used to them they worked well

As a distance runner and cyclist, I use a number of sun glasses, some of them with interchangeable lenses. Unfortunately, I also need near sight vision correction. Buying prescription sunglasses in the quantity I need them would simply be cost prohibitive. These Stick-On-Bifocals are a perfect solution for this situation. I can use any sunglasses I want to and convert them easily in prescription sunglasses for a very low cost. I think it is a perfect solution. I would have given the product five stars. However, there are a few potential adhesion problems. With one pair of interchangeable lenses, I can't get the Stick-Ons to stick at all; they simply fall off every time I try. With another pair of lenses, the Stick-Ons stay in place but tend to gradually come off at the edges over time. No real problem, though, I just push them back in place with water while cleaning them. Overall, this is fantastic idea and very low cost solution for a problem I had for years. If you have a near vision correction need, this is the answer. Are there some potential adhesion issues? Yes, but for me the benefits outweigh by far the occasional issues. With this in mind, I can highly recommend this product.

they kinda worked... for a while ..then tend to just fall off at the most inappropriate times

They work well when attached to your mask, but they fell out of my mask a few times. I'm really lucky that I found the one that fell out both times.

I have struggled for years to find a pair of “cheater” safety glasses that is required for my job. I could never find any store bought or prescription safety glasses that I could see out of. They never could be adjusted properly. I thought I would try these…I mean I have wasted more the $15 over the years on bad fitting glasses. To my surprise, I was able to place them perfectly on my safety glasses so that I can see both far and near. They were able to fit the curved lenses of the safety glass very well. I have been wearing them now for a week of 12hr day without any issues. I’m very happy with my purchase and I strongly recommend giving these a try.(Note: Follow the directions exactly and you should have no issues. Let them set 24 hours before using.)And now…7/14/22, this set is on my third set of safety glasses. Still good.

Discovered earlier this year that I couldn't see my gauges when diving and didn't want to invest in a prescription mask. I bought two pair, one for my regular mask and one for my Liquid Image camera mask. I put them in my regular mask and all seemed well until the second time I had to partially clear my mask....out they both went. I decided to only put one in my LI mask for my dives a couple days later and double checked how secure they were before leaving for the boat...no matter what I did, or have done since, I can't get them to stay securely. I have seen other reviewers' hints for using very hot water, etc....no luck. When they are in, I can see thru them incredibly well, so in that aspect, the quality is great, but it's a bit of a steep price for these to be "disposable" or single dive use.Any suggestions on perhaps some kind of adhesive? I want to be able to remove them in the event I need a different strength lens, but don't want to have to buy a new set in anticipation of each dive.

They really are like having bifocals on any pair of glasses you wish. However, for proper sticking, the curved side must be against your lenses. Figuring out which side is which is not so easy. The instructions that come with say "squeeze gently from the sides" and the sticks on will bend in the direction of the curved side...These instructions give a reliable result 50% of the time (meaning, they are of no help at all.) I had to placed them on a flat surface and see which side did not lie flat on the surface. Also, due to the way they are stick (hydrostatic interactions), they are liable to strip off any anti-fog coatings (or other coatings) found on the inside surface of many sports-type sunglasses or goggles. I do not fault the OPTX stick-ons for this, but it is something to be aware of when deciding to use this product.Once stuck, they work very well. Just like any standard bifocal. You can trim all around the sides without affecting the magnification. I trimmed off about 1/8" without any adverse affects.

A great way to fight the inevitable blindness and keep your old gear (masks, helmets, sunglasses). Easy to stick on and move (which I had to do several times to get it just right).

These are not as goodAs I expected but are just about acceptable.

Didn’t even last five minutes, NOT great for dive masks actually... soon as the tiniest leak got into the mask they were floating around like fish in a fishbowl.

Really good just the job

Beim Anbringen habe ich eine Markierung vermisst, welche Seite noch oben muss. Es brauchte mehrere Anläufe, bis die Linsen einigermaßen hafteten, obwohl ich die Taucherbrille vorher noch einmal ganz gründlich gereinigt hatte. Auch nach dem Tauchen muss man die Maske sehr vorsichtig behandeln. Sowohl beim Ausspülen im Handwaschbecken (nicht im Becken der Tauchbasis) als auch bei der Verwendung von Anti-Beschlag-Tropfen ist jeweils eine Linse wieder abgegangen. Schließlich habe ich eine Linse verloren, als ich nach dem Tauchgang die Maske um den Hals baumeln hatte. Die Sicht war ansonsten gut, Ablesen von kleinen Symbolen des Computers kein Problem mehr.

I use these on my sport sunglasses. I use these around my surgical loupes in my clinic so I can read the patient charts. I use these on my fine dressy Rayban sunglasses. This would all cost a fortune to achieve using an optician and custom lenses! but only twenty bucks and a couple minutes work. I Paid like $200 for aviation bifocals years ago for flying and those are nowhere near as nice as my Raybans with these lenses for reading the instrument panel. They wanted like $500 to custom make reading lenses around my surgical loupes - uh nice try. THIS IS A NICE PRODUCT