Good News:

Nearsighted people can rejoice, because after a wait of nearly two years, Neoptx, based in Miramar FL, announced that their new in-house molding facility has started production on their popular Optx 20/20 HydroTac Stick-On Bifocal Lenses.

“The Optx 20/20 HydroTac Stick-On Lenses allow you to turn any glasses into Reading Glasses. HydroTacâ„¢ Soft Reading Lenses adhere with water, yet are removable and reusable to provide optically correct magnification to sunglasses and prescription eyewear. Optx 20/20 Lenses are lightweight, ultra-thin pliable lenses available in +1.25, +1.50, +1.75, +2.00, +2.50 and +3.00 diopters. Soft Reading Lenses are a smart alternative to expensive prescription readers.” – Neoptx


The HydroTac Bifocals use the same formula as previous models. However, they are now sporting new, more modern packaging and an improved Use & Care Guide.

Real World Testing:

Since the HydroTac Stick-On Bifocals have been out of production for almost two years, we decided to test them on several different models of safety glasses. We wanted to make sure the product still worked as advertised and our customers wouldn’t receive any unwanted surprises.

We carefully followed the included directions and prepared each pair of safety glasses by thoroughly cleaning their lenses. This is a major step because it ensures there is no dirt or oily residue on the lenses, which could affect how well the HydroTac Bifocals adhere to our glasses.

We then placed a drop of water on the inside of both lenses of our safety glasses, put the HydroTac Bifocals on the inside of the glasses’ lenses, and gently positioned the bifocal on the lens using our finger. We then tried the glasses on to make sure the Stick-on Bifocals were positioned to our liking, making adjustments as needed. Once the HydroTac Bifocals were in the desired position, we gently dried each one with a soft cloth to remove any excess water. We then allowed the glasses to dry, untouched, for 24 hours.

We’re happy to announce that we had a 100% lens-adhering success rate. None of the HydroTac Bifocals fell off or became dislodged. Using our finger we attempted to nudge them, and they held securely and, when we wanted to, we could easily remove them using our fingernail to lift/peel them off the lens. We had no problem reattaching the lenses following the same installation steps.

Price Update:

With the construction of the new Neoptx production facility and increased material costs, there has been a slight price increase to vendors. Safety Glasses USA has leveraged its volume purchasing power to keep our prices as low as possible. The new price of $9.25 is only a $0.75 increase from the previous model!

Helpful Tips:

If the HydroTac Bifocals are too large for the lenses on which you wish to install them, you can trim them down with sharp scissors. It’s recommended you trim the bottom, curved portion of the HydroTac Bifocal Lens, not the straight, upper part.

If you have a job where you’re always working above your head, which causes you to tilt your head back when using traditional bifocals, you can install the HydroTac Bifocals to the top of your lenses. This will allow you to use the magnification of the HydroTac Lenses without having to tilt your head back. Just make sure you install the HydroTac Bifocals upside down, so the round portion of the Bifocal is facing the top of the eyewear lens.

Some safety glasses or sunglasses have too much lens curvature (greater than 6 base curve) for the HydroTac Lenses to bond sufficiently. You may want to consider purchasing Bifocal Safety Glasses or Sunglasses instead.


By | 2017-06-02T18:03:39+00:00 November 15th, 2013|All Posts, Product Reviews|0 Comments

About the Author:

Michael Eldridge is a US Marine Veteran and the founder of He’s passionate about protective eyewear and promoting vision safety. In his spare time, he enjoys target shooting, fishing, CrossFit, mountain biking, camping with his family and watching Detroit Tigers baseball.

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