How do bendable glasses work?

Answer 1

When the light hits the lens of the eye glasses, it bends the light. This makes the light rays focus onto the retina (the back of the eye). Take a clear drinking glass and fill it half way. Put a pencil in the water. When you look at the pencil through the side of the glass, it will no longer look straight. When the light rays travel through the air then hit the water which is more dense the light rays are slowed down and then when the light rays exit the water they leave at a slightly different angle.When the lower part of the pencil is in the water it makes the pencil look fat.

Answer 2

It is the frames that are bendable. They use several tricks to be bendable. The most common is adding a spring in the hinge to where the temples can be pulled beyond their normal range in case you get hit in the face. That way, the glasses will move on your face and not shatter the lenses. However, the truly bendable ones also use special alloys of metal which are flexible and hold their shape well. That helps with things such as accidentally sitting on your eye glasses.

As of yet, the lenses themselves are not flexible.