Airlock rimless prescription eyeglasses are fashionable and light, but they tend to have different maintenance needs than do regular plastic or metal frames. This is because the lenses are held in by a thin, clear plastic line along the bottom edge.
This can make it difficult to replace the lens if they pop out, but the glasses are easy to repair in other ways, such as if the nose pieces are bent, the temples bend or the ear pieces need to be adjusted.
Hold the lens firmly, but gently, in your dominant hand. Avoid using tools to hold the lenses as they may become damaged beyond repair.
Put the lens into the hole of the frames they would normally fit, making sure to place them in the correct direction (not upside down or backward).
Gently pull the clear plastic line around the edges of the lens, making sure to place it in the groove carved along the edges of the lens. If the line fits too loosely now to hold the lens as it did before, use a Phillips head screwdriver to tighten the screw that holds the line.
Place the glasses down onto a level surface to see how they need to be adjusted. This is to show you how they are off-balance.
Use needle-nose pliers to clamp down gently and pinch the corner of the frames. This is the corner where the frame meets the arm of the glasses.
Use needle-nose pliers to gently bend the frame slightly upward or downward, depending on what they need.
Hold the frame in your dominant hand before the ear piece curves. Bend it away or toward the frame.
Straighten the curve of the ear piece if it's too bent and cuts into your ears.
Curve the ear piece if it's too straight and doesn't sit securely on your ears.
Use the needle-nose pliers to twist the nose pads in an inward direction if the pads are too low and wide.
Use the needle-nose pliers to twist nose pads in an outward direction if the pads are too high and narrow.
Use the needle-nose pliers to twist nose pads in an upward or downward direction if the pads simply sit on your face uncomfortably.
If the lens pops out and the clear, plastic line holding the lens in has broken, have an optometrist repair them.