In our latest blog post we are going to look at what Photochromic reading glasses are, how they work and how they can make your life more convenient. What are Photochromic Reading Glasses and How do they Work? Photochromic or light adaptive lenses, were invented by William H. Armistead and Stanley Donald Stookey in the 1960s. These special lenses have the ability to change colour in certain situations. When the apparently clear lenses are exposed to sunlight, they become tinted, turning into sunglasses in a matter of seconds. Since they were…
Tag: Benefits
The Main Uses for Bifocals…
Many of you may have seen that we stock and sell bifocal reading glasses and reading sunglasses, however you may be wondering exactly what these type of glasses are and how they may help you. Within this blog post we will hopefully explain everything you need to know about bifocal lenses, their history and origins, the different types and their uses, as well as pros and cons of this particular lens. Bifocals are lenses with two separate distinct optical powers. Simply put they are one lens bonded to another. The main part…
What is the difference between polarised sunglasses and UV400 sunglasses?
Why should we wear sunglasses? What are UV rays? Ultraviolet radiation is a type of light that is not visible to the human eye, and is part of the rays that reach us from the sun. Excessive exposure to UV Rays can result in the front surface of the eye becoming damaged, much like sunburn on the skin. Without proper precautions, these rays can also have harmful cumulative effects that may develop over time. Too much exposure to UV rays may result in one or more of the following eye…