by silveragency | Aug 23, 2019 | Uncategorized
We have all heard someone brag about their 20/20 vision (or maybe it was even us), but what does that term really mean? To understand the basics of the “20/20” claim, it might help to get a bit more familiar with the Snellen vision test chart – see fig 1,...
by silveragency | Aug 23, 2019 | Uncategorized
What are UV rays? More accurately described as Ultraviolent (UV) Radiation, UV rays are a form of electromagnetic radiation. Radiation is defined as the emission of energy from a source. Radiation can be from very high energy sources like gamma and x-ray to low...
