I'm surprised that these nifty little ear grips aren't more well known. Sure they're not sexy but they are incredibly effective! If you have an insubstantial nose bridge (like me) or a sweaty nose in the summer (like me), then you'll know how it feels to be constantly pushing up glasses and sunglasses.
Before I had my laser eye surgery, I had ear grips on my glasses but I left them on the frames when I gave them away to be recycled. Then I bought these Ray-Ban Aviator sunglasses and although they stayed put initially, it was a different story once I got them out on holiday in Bermuda recently where not only was the sun blazing but it was also 80% humidity. The sunscreen and sweat basically meant I gave up on wearing them completely. Aviators seem to be particularly heavy for some reason and I just couldn't fight gravity.
So this weekend I bought this super stylish "deluxe eyeglass repair kit" which contained nice, new ear grips...
The ear grips themselves are flexible, tadpole-shaped pieces with holes which you slide the arms of your glasses through. If the ends of the arms are too wide to fit through the holes (but skinny otherwise), you can use the screwdriver in the kit to detach the arms from the frames then slip the grips on from the other end. I had to do this with my Ray-Bans. It literally takes minutes.
The ear grips that came in this particular kit are discreet and transparent so they're virtually invisible when worn. I had to try quite hard to get a photo of them showing up.
When you're wearing frames with these ear grips, you'll find that the centre of gravity shifts from the nosepieces to the ear grips. So the frames will be much less dependent on gripping the bridge of the nose and will instead balance between the ears and nose. So glasses/sunglasses are much more comfortable to wear, your nose gets a rest, and those pesky red nosepiece indentations are no longer a problem. Plus I've heard that wearing heavy glasses can slowly form a bump in the nose over time!
The ear grips are particularly handy for when you're looking downwards (e.g. when reading) or jumping around, because they hook onto the backs of your ears and stop the glasses sliding forward.
There you go. That is the secret of keeping glasses and sunglasses at the top of even the most flat and sweaty noses! I could do a cartwheel wearing my modded sunglasses and they'd still stay in place!
Don't go into an opticians asking about these ear grips... they'll have no idea what you're talking about. I've only ever seen them in cheapo "spectacle repair kits" that are the kind of thing you'd find in pound shops or on eBay. I bought this particular kit from the pharmacy, Duane Reade in New York for $4.69.