Glasses or spectacles are one of the slowest items to react to change.
The reason is, if we ignore the cost element, that wearers become accustomed to their own appearance in the mirror.
People are naturally reluctant to alter their facial appearance and prefer the status quo .
The components of spectacles are few, consequently changes in style are subtle. Only the shape and surround of the lenses and the supporting arms can alter. Glasses of the 1930s have larger lenses and incorporate more plastic than the previous decade.
Some patterns still have exposed metal but generally the trend is to cover the frame, usually with imitation tortoiseshell or black plastic.
Above photographs Regent Portraits Ltd Regent St , Leicester Square,& Oxford St