The eyeglass industry has two major exhibitions a year, one in the spring and one in the fall. Yesterday, there was a spring exhibition, and I spent a day visiting various locations in Tokyo. Some exhibitions have joint booths in large exhibition halls...

  Yesterday, I visited an eyeglass exhibition. In the eyeglass industry, new products are presented at spring and fall exhibitions, and many eyeglass shops look at sample frames from various manufacturers and make purchases at that time. The biggest exhibition...