Extremely poor quality lenses and frames
I bought the most expensive frames / lense combination and the lenses are extremely poor quality pentax lenses which mist and fog all the time. The frames are even worse, constantly becoming loose and requiring tightening. The overall quality is so sub-standard that after one month I threw them away and bought a decent pair of glasses from an independent optometrist. AVOID CHEAP POOR SUB-STANDARD QUALITY !!!