Specialty Lenses

February 2018 Education

It Isn’t All History in Philadelphia

The other day I visited downtown Philadelphia for the first time. It’s a great city, and you can’t beat it for history! There are the Liberty Bell, Independence Hall and many of the “firsts” and “oldest” for our country. Opticians remember Benjamin Franklin, one of Philadelphia’s founding fathers, as the inventor of bifocal spectacles. Of course, there’s Market Street with great food shops, and the “Rocky Steps,” the 72 steps leading to the Philadelphia Museum of Art, immortalized by Sylvester Stallone. (Don’t ask. Just looking at those steps gave me leg cramps!)

August 2016 Darryl Meister Educational Forum

The Importance of Understanding Color Vision Deficiency

The eye is a complex piece of anatomy capable of determining everything from broad shapes to precise details. Among the many tasks the eye is able to perform, one of the eye’s key tasks is to aid in the determination of the many variations of color.

October 2015 Lenses

The Fog Has Lifted

So, it seems everyone wants the look of the big plastic acetate frames, fun, colorful, oversized frames. I get it, I wear them too, and truth be told, I love them. Hold on, Let’s rephrase this statement, I LOVE LOVE them!

July 2015 Lenses

America In A Fog?

You open the oven door to check your pizza, your glasses fog up. You’re speeding down a ski slope, your glasses and your goggles fog up. You step out of an air-conditioned car into the summer swelter, your sunglasses fog up.

September 2014 Specialty Lenses

Human Perception of Color

Sunsets are red and so are tomatoes, yet these two reds are quite different. The word "red" by itself doesn't carry enough information to uniquely identify a particular sensation of color.

September 2014 Darryl Meister Educational Forum

Color Vision Deficiencies

As a human, one of the first things that newborn babies experience when they get through a mother’s womb is facing the light.

July 2014 Specialty Lenses

A Brief Look at the Theory of Color Perception

Different wavelengths of light (electromagnetic waves) create different sensations of color. For example, objects that reflect wavelengths of light in the range of 620 to 750 nanometers (roughly 200 time smaller than the width of a human hair) appear red/orange to us.