"Excerts" (prescription lens bolted on the front) are strong but rain and sweat gets between the two lenses. So I have decided that the solution is rimless. These were made using some old frames that I had lying around and reused lenses.
Rimless Dork by
Timothy Takemoto, on Flickr
But I would like some strong, two bolt type rimless frames like these but I am hopeful that I will find some for less
TAG brand eyeglasses men and women rimless reading glasses frames T 3356 white eyewear for unisex optical eyeglasses with box-in Eyewear Frames from Men's Clothing & Accessories on Aliexpress.com | Alibaba Group