Description
Lenses To Filter Blue-Violet Light How Does Blue Light Affect Our Sight ?:
Most of us think of light as the absence of darkness; light is either present or absent, either natural or from a man-made source. While none of that is incorrect, there is actually much more to light than (pardon the pun) meets the eye.
What is Blue Light ?:
For the purposes of this article, we’ll focus on blue light, one of the many hues in all visible light.
Blue light is naturally produced by the sun but also by computer monitors, smartphone screens and other digital devices. In addition to these, blue light is produced by LED and fluorescent lights, and compact fluorescent light bulbs. Blue light is essential in maintaining your mood and keeping your memory sharp.
Why We Need Blue-Violet Light Filtering Lenses or Glasses ?:
- Blue light is everywhere – While manmade sources of blue light include fluorescent and LED lighting, flat-screen televisions, and the display screens of computers, electronic notebooks, smartphones and other digital devices; our main source of blue light is the sun, and we are most exposed to it when we are outdoors during daylight hours. This is where the most damage occurs and our children are also vulnerable to it since they are more likely to spend a significant amount of time outdoors whether at school or in the playing field.
- Natural blockers are ineffective – While the cornea and lens of the eye are effective at blocking UV rays from reaching our light-sensitive retinas, almost all visible blue light passes through these barriers, which could reach and damage the delicate retina.
- Increased risk of macular degeneration – Because blue light may reach and contribute to damage the light-sensitive cells in the retina, while being more and more exposed, this may be one more important contributing factor to permanent vision loss.
- Increased vulnerability post cataract surgery – Always ask your surgeon what type of Intraocular lens (IOL) will be used to replace your cloudy natural lens, and how much blue-violet light* filtering that lens provides.
Reviews
There are no reviews yet.