unisex-adult Hydrotac Stick-on Bifocal

I'm currently 52 and simply can't focus on things close to my nose anymore. With the way water plays tricks with light, the issue gets worse underwater. I like to do underwater photography and video, but I wanted to be able to get a closer view of my camera LCD screen, so (despite some reviewers saying they didn't have luck with these stick-on lenses) I decided to give them a try for 15 bucks. Here's what I would tell people to do for better success: 1. Despite what's been said, these absolutely will remain stuck, if you do what others have recommended which is to apply them with water and LET THEM DRY WITHOUT MOVING THEM FOR 24 HOURS. You only need a drop of water but make sure that any bubbles are worked out from under the lens, and let any excess water remain & evaporate which may get pushed out from underneath after setting them in place. If applying to a prescription mask which may have a curved surface, I won't predict how well they will stick. But when applied to my atomic aquatics venom frameless and following the instructions, they've stayed stuck now for 8 dives despite multiple applications of defog & mask scrub/cleaner. (I placed mine very low in the mask with the straight edge of the lens lined up against the vee of the mask nose section, so they look kind of like mouse ears. This has worked excellent for bifocal use, and does not obstruct my underwater view objectionably.) I do not let my mask sit in fresh water tubs on boats, but as an initial test, after they'd first adhered but before diving with them, I put some tap water in the mask and soaked overnight. They remained stuck. It's worth mentioning I cleaned the mask surface extremely well before applying them. 2. They do indeed seem to fog up more easily than the mask glass, but when I properly applied sea drops defog they stayed clear on *most* dives. When I additionally scrubbed them using mask cleaner (or soft scrub) before applying defog, they seemed to fog even less. Using both products on every dive will be my protocol going forward. 3. I bought the 1.5x version and I can focus on most anything right next to my face. Hope this helps --

Do not buy. One lens was cloudy and could not be used and the other one wouldn't stay attached. Poor visibility, Poor adhesion, Poor quality, Waste of money.

IMHO - The amount of light to the eye influences the power you will need, so get a higher power for sunglasses. These can be cut to any shape to reduce the height/width profile to limit field range affected by these lenses. I love my Mai Jim sunglasses and their ability to wrap around and shield the sun from both above the frame and sides, but was unable to read anything with them. I simply cut these lenses to the desired height/width and with a single drop of water apply them to my sun glasses and other eye wear. I wear my sun glasses during all activities, including swimming in both pool and ocean waters with significant time under the water, and so far the lenses have not washed off. However, you do need to rinse the lenses well for storage or you will get a white salt residue on them which reduces clarity. When I buy these lenses I get at least three different powers (e.g., 1.25, 1.50, 1.75) since the power needed will be influenced by the amount of light available to the eye (and sadly age/time - or as arms get shorter, hmmm maybe that is the problem). Therefore I'll add the 1.25 to the clear lenses I wear at work, and either 1.50 or 1.75 to the sunglasses depending on the light and activities. I'm fortunate I see things beyond the length of my arms, but need these lenses for close work, I can comfortably and quickly reuse these and stick them on any existing glasses (or goggles, safety glasses, scuba masks, etc.). I dislike having to carry any bags, purses, etc. which adapting any eye wear for all situations means I can enjoy my activities without having to carry or track multiple pairs of glasses or associated cases. To make life easier, if you think you'll need a particular power for more than one 'stick on' scenario, than buy that many; although they are easy to apply and remove back into the delivery case they came in, life is just easier (especially if you custom cut/trim them for an application) to just leave them on a particular item. Just a bit more information, when you can barely see that magnification circle area on glasses from the eye doctor, they are using the same stick on principal. I saw this when my husband went to the doctor to adjust his new glasses, they just peeled the circle off and 'stuck' a different mag lense on the glass, naturally I'm sure they used something other than a drop of water, but same principal. I tried getting glasses from 'eye glass places' several times but would significantly loose field of vision and felt I went from normal to legally blind - having the ability to trim and shape these lenses allows me to customize applications so I'm not looking through 'power' while walking or driving, etc. If you are really careful while trimming, you can get more than one application from a single set. For me, I only needed a very thin slice at very bottom of sunglasses so that it was not in vision field during normal activities and only enough there to intentionally view from bottom edge.

My main purpose in getting these lenses was to help me while skiing. I found that this ski season, my 50 year-old eyes weren't able to read the trail maps. I would be on the lift with my kids saying "Hey, let's take the Cats Cradle trail this time" and they would correct me with "Do you mean the Canyon Crossing?". Okay, I get it. My eyes have aged and I have three options - prescription ski goggles (???), glasses which fit under my goggles (comfort??), or these. When I tried them, I did so with my goggles on and regular lighting and I was disappointed. Because the goggles kept the lenses far away from my eyes, I just couldn't align them properly to get the 1.5 magnifiation I needed. But when I put them on my cheapo Timex Ironman wraparound sunglasses, they worked like a charm. I have been very happy to have sunglasses which have become bifocals in the car. I can see the dashboard clearly and look outside without any perspective issues. And update on the ski goggles. What ended up working for me was putting a *single* lens in one side of my goggles. It gives me the ability to read clearly with one eye and not have the binocular problems introduced with 2 lenses far from my eyes. It may sound weird, but trust me, it helps! And full sunlight makes a huge difference in the clarity. I have moved my rating from a 3 to a 4 ... but take my advice and don't be afraid to half your vision to improve it!!

No one else except this company makes these stick-on bifocals. Google "stick-on bifocals" and see for yourself. This is NEVER a good thing, and it's not good here either. This product has grown exponentially more expensive over the years without any innovation in quality - because there's no competition. They're an okay product - too thick, too unmalleable, but they do the job once they're on your glasses. OPTX/Hydrotac needs some good ol' free-market competition. Then they'll start making an excellent product (or their competitor will).

This product is FANTASTIC........simply FANTASTIC. I have some rather expensive oakley sun glasses, and have recently started having to use cheaters. I didn't want to bu the "cheap" cheater glasses, so I opted for this option. They work great. As advertised. They don't seem to slip and they have been attached to my glasses for a couple weeks now. I did change the method of installation a little. Instead of using a single drop of water as the instructions state, I soaked my sunglasses in hot water, and once they had been in the water for 4-5 minutes, I pulled them out, left the water dripping a little and applied the stick on bifocals. They works as expected, and I'm so happy, I'm purchasing another set to put on my spare sunglasses.

the wet and stick bifocals worked ok... not great, but acceptable, and a good value. will likely buy another set with a different power for another set of sunglasses and may try them on welding goggles as well. for the money they work, and allow me to see the instrument cluster with a nice pair of off the shelf sunglasses... unfortunately they're not quite right for reading a book... visual acuity just isn't there for that, but it could be the shape and darkness of the sun glasses I used... either way, still much less money than a set of RX sunglasses.

I purchased these because I was going on vacation and wanted to be able to read by the pool or be able to read signs while sight-seeing. I had previously purchased the "as seen on tv" Hd Readers but the reading area was way to small. These lenses worked perfectly. I was able to cut them to exactly the size I needed and I can put them on any sunglasses I wanted so you can still wear stylish sunglasses!! I know some people mentioned that they fell off but I haven't had any problem with that. As a matter of fact I wanted to cut them just a tad smaller and I couldn't remove them so they stick just fine. These lenses are the perfect solution for anyone who needs reading glasses and wants to be able to read while on the beach or at the pool!!

I had heard about these but couldn't find any locally. They go on very easily and are easy to remove or re-position with just a few drops of water. I don't need reading lenses regularly, but when I am wearing my distance lenses I lose some of my close up detail so these have been great. I put them on an old pair of glasses for when I am working with miniatures and want to watch a movie on the TV, or on my safety glasses when I am working in the garage and wearing my contacts. I do have other safety glasses that have magnifying areas built into the lenses, but these give a much larger field of view. So nice to be able to transform anything into readers/bifocals.

If the curvature of the glass lens does not match the stick-on bifocal, it will not sit flat and there will be a noticeable focal change making them useless.

Work exactly as advertised. Easy to install. Can now read GPS while riding and instruments aren't fuzzy.

I bought these because I was tired of switching back and forth from my glasses to the cheap readers I wear to read. Some day I will have to change to bifocals but until then these are awesome. I followed someone's advice and put them on upside down. That is, I put the flat edge along the bottom of my lenses. My glasses have very small oval lenses and putting them on this way (after trimming to fit) made it so easy to read but they didn't interfere with the prescription portion of the lens. You do have to be careful to match the curve of the lens to your glasses. But once you do that they are so easy to use. I would totally recommend these if you need readers like I do or something to tide you over until you get bifocals. they are so helpful.

I use these on my sunglasses. Works great and no need to buy prescription sunglasses. They stick very well to the glasses and have never come off accidentally.