Use reading glasses or have trouble reading small characters on cycle computers and cell phones? Dual eyewear maybe worth a try. Dual makes sports specific power sunglasses that feature a discreet magnification area molded into the lower portion of the lens.
The Dual S4 is for riders with small to medium faces and are stylish enough for off-the-bike use too. They have shatterproof and scratch-resistant polycarbonate lenses and impact resistant TR90 frames to withstand normal wear and tear. Non-slip TPR-50A rubber nose piece and arms inserts keep the glasses in place. Select magnification and brown or smoke grey lens.
To select the proper magnification for cycling, Dual suggests a slightly weaker magnification than what you would use to read a book. For example, if you use 2.0 readers at home or the office, try a 1.5 for cycling.