Vistors look at glasses on display at an expo in Beijing, Sept 9, 2015. [PHOTO PROVIDED TO CHINA DAILY]

"In the past, when a consumer was recommended Zeiss lenses, he or she would hesitate because the price was beyond his or her budget, or considered not affordable.

Now, many consumers would consult us about the differences between a wide range of lenses offered, and hear us out patiently about particular functions of specific lenses.

"Again, in the past, much of a consumer's eyewear budget was spent on the frame, especially luxury brands' frames. Now, more is spent on high-end lenses."