Interesting Facts about Sunglasses and Ultraviolet Rays
by EO Executive Optical | May 12, 2017 at 06:18am

Sunglasses for sale in the Philippines are not only for fashion but primarily for vision aid or to guard against the harmful rays of the sun, the very notorious ultraviolet rays or UV rays.

In case you haven’t read it, we’ve given you tips on how to choose the right sunglasses and we’re not talking about what suits your face shape. We’ve discussed something about the lens color; the right fit on your face; the lens and frames material; and last but certainly not the least, that it should have superb UV protection. But wait there’s more! 

The Deadly Duo: Photokeratitis and Photoconjunctivitis

It is not only our skin that gets sunburned. Our precious peepers are not immune to it as well, specifically the cornea and conjunctiva. According to World Health Organization (WHO), photokeratitis “is an inflammation of the cornea,” while photoconjuctivitis is “an inflammation of the conjunctiva.”


Snow is a culprit, too

What is snow doing here in this article if we had just mentioned sunglasses for sale in the Philippines? For us who live in a tropical country, it is best not to be ignorant and think that snow is just a white, fluffy American Dream. Snow plus strong UV rays can result to snow blindness. As explained by All About Vision, “snow can reflect more than 80 percent of the UV rays that fall upon it.” In case your next trip is in a country with temperatures below freezing point, don’t forget to bring the sunglasses for sale you’ve bought in the Philippines.


A misconception about colored lenses

The darker, the better? It is not in the color of the lens but “it’s a function of the lens material or a treatment the lens has,” Think About Your Eyes reveals. One thing is for sure, you should ask if the lens could protect you against the sinister UV rays one hundred percent.

Don’t ignore HEV

What does HEV stand for? It means High-Energy Visible light or blue light. So, it is not just UV rays we’re dealing with. Blue light is a visible light unlike UV rays which falls under the invisible radiation of the light spectrum. Although it emits lower energy than UV rays, “they penetrate deeply into the eye and can cause retinal damage,” All About Vision warns. Blue light is the sneakiest because even if you’re not exposed to the sun or are under a shade, you can get it from “artificial light sources such as LEDs, computers and smartphones,” as told by American Optometric Association. This is another item you should add on your checklist when you buy sunglasses for sale in the Philippines.