
Replacing the windows
The video shows how it works
It's best to start removing the lens from the top. Hold the frame of the glasses in the forehead and mouth area and pull it apart. The lens will pop out of its holder and can be removed. When fitting it, do the opposite: first insert the lens into the grooves at the bottom and then work your way up the sides. Make sure that the small tabs in the frame of the glasses are pressed into the recesses in the lens. Don't worry, the lenses and the frame are flexible. Nothing can break as long as you don't try to help it with sharp or pointed tools.
Which lens fits my glasses?
-
Goggle and lenses V2
If the lettering REX SPECS is embossed in the frame,
you have a pair of glasses of the new and improved V2 version . Only
Discs from the V2 line -
Goggles and lenses V1
Is the lettering REX SPECS printed on the disc
You have glasses of the first generation V1 . Only the lenses from
the V1 line

When do I replace the Rex Specs lenses?
Dogs use their eyes to orient themselves into the distance ( see
Blog: How do dogs see? ). Small scratches and dirt on the windows disturb
or hinder the dog’s vision less than it is a problem for us humans,
if glasses are dirty or scratched. In the picture you can see what the Rex Specs
Dog glasses can take everything away, and in such a case you could already have
think about a new disc.