These Techy Reading Glasses Are Expensive, But May Hold the Key to Future Eyewear

The vision and eye care business is a unique blend of two industries: health care and fashion. In New York City this month, this was on display fully at the Vison Expo East, an event for eye care providers, designers, vision business leaders and eye-tech aficionados. (There’s also a Vision Expo West.) Think of it as the CES of eye care, but this time it was off the Hudson River and with raised…