Skip to main content
Home » Eyeglasses » Prescription Eyeglasses » Photochromic Lenses

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!

x

The safety of our patients and staff has always been a top priority. Please be advised that ALL non-essential and elective services (ie: routine eye exams) are suspended until further notice. If you need any help, please email: nanjiangoptometry@gmail.com

Thank you for your patience and understanding.

We will continue to closely monitor the COVID-19 situation and will announce when it is appropriate to once again welcome patients into our office.