Can LED Lights Damage the Eyes or Disrupt Sleep?

LED lightsLED light bulbs are becoming very popular, but what is their effect on the eyes? Light Emitting Diode lighting uses up to 95% less energy than their incandescent counterparts. Before replacing your home or workplace’s indoor lights with LEDs, consider two downsides:

  • LEDs do not give off near-infrared radiation, which is necessary for health
  • They emit large amounts of blue light, which disrupts sleeping patterns and over time can contribute to eye disease.

One of the benefits of LED lights is that they are Continue reading “Can LED Lights Damage the Eyes or Disrupt Sleep?”

Sun Protection for the Eyes: Prevent Eye Injuries, Cataracts, ARMD, Surfer’s Eye

sun protection glasses hat sunscreenThe sun sustains life, but it also can harm our eyes. Unsafe sun exposure causes or may contribute to several eye conditions and diseases. It can also cause eye injuries. Earth’s ozone layer absorbs most of the ultraviolet (UV) light from the sun, but chemicals have damaged it. Therefore, we must take extra precautions to prevent cataracts, age-related macular degeneration, ocular melanoma (eye cancer), and eye injuries such as pterygium (Surfer’s Eye), photokeratitis (snow blindness), and flash blindness. The sun is also a driving hazard when low on the horizon.

The body contains its own “sunscreen,” which is melanin. Dark-skinned people have more melanin and Continue reading “Sun Protection for the Eyes: Prevent Eye Injuries, Cataracts, ARMD, Surfer’s Eye”

LumiThera Develops Treatments for Vision Loss from Macular Degeneration

limthera deviceA low-level light treatment called photobiomodulation may be a future treatment for macular degeneration. A company called LumiThera is developing devices for treating vision loss. The devices expose the eye to low-level laser light or light emitting diodes to stimulate cellular function. This is called low level light therapy (LLLT). It is distinct from surgical or aesthetic laser treatments, which destroy tissue.

Visible or near infrared light (NIR) light is produced by a laser or a non-coherent light source. This therapy is in wide use by chiropractors, physiotherapists and sports medicine professionals to treat Continue reading “LumiThera Develops Treatments for Vision Loss from Macular Degeneration”

Computers & Your Eyes Part I: Computer Vision Syndrome

computer-eye-syndromeElectronics have become primary obsessions in our personal and work lives. This has lead to nearly everyone becoming susceptible to Computer Vision Syndrome. Symptoms include dry eyes, eye strain, blurred vision, headaches, double vision, difficulty in concentrating, fatigue and/or and head, neck and shoulder pain.

Additionally, heavy computer use has been associated with glaucoma[1. https://www.naturaleyecare.com/articles/glaucoma-and-heavy-computer-use.asp] Electronics screens emit blue light that can damage the retina, leading to macular degeneration.[2. Do blue light filters confer protection against age-related macular degeneration? by Margrain TH et. al. Prog Retin Eye Res. 2004 Sep;23(5):523-31. https://www.ncbi.nlm.nih.gov/pubmed/15302349] Close-up work is associated with myopia (nearsightedness).[3. “Risk factors for myopia in a discordant monozygotic twin study.” Ramessur R, Williams KM, Hammond CJ. Ophthalmic Physiol Opt. 2015 Sep 17. doi: 10.1111/opo.12246. https://www.ncbi.nlm.nih.gov/pubmed/26376775] Continue reading “Computers & Your Eyes Part I: Computer Vision Syndrome”