High Energy Light Protection (H.E.L.P)
High Energy Light Protection (H.E.L.P) – Doig Optometry – Optometrist in Calgary
If you’ve recently been in the market for glasses, you may have noticed that things seem to have gotten a bit more complicated over the years. Many glasses are being labeled with initialisms like UV and HEV. But what do all these letters mean? UV? HEV?