You don’t see stuff. You see light. It’s how your eyes work.
When you’re looking at an object, what your eye is actually seeing is any light that’s reflected off that object. That’s why we don’t see anything in complete darkness. Those things are still there but no light is to reflect off them.
Do you wear glasses? The lenses redirect incoming light into your retina, so your brain can interpret what you’re seeing. However your glasses are objects too.
And remember the first paragraph.
Some of that incoming light reflects on your lenses, creating a flare-up of light. This effect is especially noticeable at night when oncoming headlights can cause repeated flare-ups.
Moreover, some of that incoming light that gets reflected off the front of your glasses lens can also be reflected again by the back of your lens as it passes through.
That’s glare in and glare out of your glasses lenses.
Furthermore, that same light beam may bounce off your eye and back into your lenses. It’s the visual equivalent of feedback you hear when a microphone picks up noise from a speaker and returns it back into itself.
Visual noise can be dangerous at this time of year. When it’s dark out, your pupils dilate wider at admit visual information or light. If that light is shining brightly (think oncoming high beams in the countryside) it can temporarily blind you.
In winter, our roads and windshield are often slick, creating more reflective surfaces and greater chances for flare-ups.
Give yourself and loved ones the gift of anti-glare coating for a safer holiday and New Year.
The layer of coating soaks up reflected light — or reflects it back at itself again. So it cancels out the glare, fighting flare with flare.
Anti-reflective coating won’t completely eliminate flare-ups and glare but can reduce them significantly.
This British supermarket has a very good before/after depiction of the effect. Which lenses would you rather be wearing, driving home from your friends these holidays?
Ask us about anti-reflective lens coating at your next appointment. Or call us now at 905.826.2811.