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Across from the Delta Hotel on Erb St. in Waterloo, Ontario

Photochromic Lenses

Photochromic lens technology has been around for over 40 years. Photochromic lenses change from clear to dark based on the intensity of UV radiation. Remove the source of UV radiation from the lenses, and they return to their clear state.

The amount of photochromic reaction (how much a lens darkens) depends upon the intensity of the UV radiation present, combined to a lesser extent with the current temperature of the air. That means photochromics adjust automatically to indoor and outdoor light conditions. Photochromic lenses automatically adjust to outdoor lighting conditions by providing the right level of tint, and return automatically to their clear state; both indoors and at night.

Watch a short video on photochromic lenses:

Special thanks to the EyeGlass Guide, for informational material that aided in the creation of this website. Visit the EyeGlass Guide today!

Pierce Family Vision is now open for routine examinations, frame selections and adjustments by appointment. We have taken great care to keep our patients and staff safe in these extraordinary times. Please give us a call at 519-886-4170 for more information. For those wanting advice but not ready to visit the office yet, we are offering online tele-optometry consultations. Stay safe and we hope to see you soon!