How to Fix Half Rimless Eyeglass Frames
- 1). Grasp the intact lens between your thumb and forefinger, placing your thumb around the bottom edge and your forefinger around the top. Keep a firm grip.
- 2). Gently grasp the lens that has fallen out and fit it against the top half of the frame.
- 3). Very carefully, work the nylon cord around the bottom edge of the loose lens, fitting it securely into the groove on the underside of the lens. This may take a few tries, but be patient.
- 4). Once the rim is firmly in place, use a lens-cleaning cloth to wipe off any smudges.
Source...