StickTite (Large 40mm) - Stick-on bifocal reading lens for Ski goggles and Dive masks. Patented optically clear technology.

These are easy to put on, take off, move around without any issues. You could use a cleaning spray to re-adjust if you please, but I just slap'em on because they're a temporary thing for me when I'm reading menus, or driving and need some eye power for visuals of license plates, signs, information on the road in general and other tasks.To me the investment is there with this product, and great for those who are near/far sided as well. Give them a shot, and I'd go with a lesser strength for driving (maybe a 1.5) if you're into the bi-focal type style. Some people prefer an entire lens of the power of their choice, while others prefer a bi-focal effect (I go back and forth).These come neatly packaged, secure and are of high quality so you get the results you're looking for. Ease of use is, a 10 out of 10. You can reuse them as much as you want, just keep them in a little bag so you don't lose them. Good luck on your purchase, and hope you love them as much as I have.

They don’t stay stuck for more than a few minutes, and they don’t stick at all without bubbles and lifted spots where the poorly-thought-out interior packaging has warped them at points on the edges. They are also a little wavy throughout. Can't see through them clearly even for the short time they're adhered, and actually using them to read (since they are reading lenses!) would be a sure ticket to a headache even if you could get them to stick.Honestly the poorest product I've bought online in at least the last year. I specifically bought this more-expensive brand because they are 40mm wide instead of 34 or less like the much cheaper ones I saw, and the glasses I wanted to out them on are oversized. Absolutely did not matter.(Photo shows the inner packaging with the lenses resting in place. The plastic packaging does not allow the lenses to lay perfectly flat, but rather on an angle, on little ramps, if you will, with indents for your fingers—so they are only partially supported, with little nubs at the sides—circled in red—to help hold the lenses in place. This arrangement does make it easy to get hold of the lenses and gently lift them out of the packaging… but the very flexible lenses get bent just a little by those nubs, and sag just a little at the parts where they aren't supported at the finger indents.)

Over the years I have tried and used several different brands with expected mediocre results, certainally good enough for what was paid. These "StickTite" brand, at near double the price of others have been a major disappointment. Besides the slow delivery (more than likely Amazon's fault), these have not adheared anywhere close to as well as others brands I currently have still in daily use. The vision through them is quite inferior to others to the point I'm just discarding them. I had hoped the addage "you get what you pay for" would provide a superior view, but regrettably is not the case. I will go back to ANY of those competitors at half the price with a known good track record. I am glad this was just a temporary measure while I wait for my newest prescription to come in.

LAL UV Cataract glasses, not your typical use - I had cataract surgery with Light Adjustable Lenses - which means that I have to wear funky UV protection glasses for at least 6 weeks. Yes, they give you a pair with a little bifocal lens at the bottom, but this doesn't work for either computer monitors, reading piano music, etc. because the magnifying part is in the wrong place (unless you want to tilt your head up all day). I stuck on these larger bifocal lens things in the middle of the UV glasses and they worked really well. No more stiff neck!

Needed replacement stick on bifocal lenses and purchased this brand. Wasn't sure what to expect based on the polarized reviews but was pleasantly surprised with the quality. Compared to the name brand I bought before on Amazon, this one was thin, no damaged lenses, stuck tight to low prescription glasses just fine, and the magnification is inscribed in the corner of the lenses to show front from back. Did not trim the bifocal since the glasses is big enough to accommodate it's size. For good adhesion, wash the glasses with soap in medium hot water. Next, adjust the bifocal position while there is a pool of water on the back of the glasses. Tilt glasses to drain remaining water and leave on clean towel to dry.

I’ve used similar products in safety glasses so bought these to use in my prescription dive mask that doesn’t have readers. They just would not stick properly. There was no way to get the bubbles out so they kept lifting up. They are concave to supposedly fit lenses that are also but it just makes them lift off. I tried reversing them too but no luck. It’s too late to return them so I’ll try them in ski goggles. I’ll read reviews a lot closer next time.

You can place these low down in the goggles like normal or upside down at the nose point so they form a small center focal point for reading the phone or maps without taking the goggles off. Use water instead of lens cleaner to place them because of the anti fog coating. They work and have stayed in place all season so I am satisfied.

I am so happy that I bought these… I am using my vacation for my snorkels and these are fantastic. I will probably be buying more again!