Light Sensitivity

Photophobia, or light sensitivity, is characterized by a feeling of discomfort in the eye usually caused by light.

3/4/2025

Sources such as sunlight, fluorescent light and incandescent light can all cause discomfort, thus prompting us to squint or close our eyes. Headaches may also signal light sensitivity. Light-sensitive people may feel discomfort with very bright light. In some extreme cases, even a small amount of light can be irritating.

If you're naturally sensitive to light, avoid bright sunlight and other harsh lighting sources.

Wear wide-brimmed hats and sunglasses with ultraviolet protection when outdoors in daylight.

Also, consider wearing spectacles with photochromic lenses. Automatically adapting to changing light, Transitions® lenses darken when  exposed to outdoor UV and return to their clear, transparent state when indoors. Uniquely designed to protect your eyes by blocking 100% UV rays and filter blue light¹ indoors and outdoors.

In bright sunlight, wear polarized sunglasses. These lenses provide extra protection against glare-causing reflections of light from water, sand, snow, roads and other reflective surfaces. All Nikon sunglasses are fitted with Polashade 2 or Polashade Reveal polarized lenses, that eliminate up to 99%² of unwanted reflections of light. As a result, your environment appears very sharp with crisp, well-contrasted colours.

  • 1. Blue light between 380nm to 500nm (with blue-violet light between 400 and 455nm as stated by ISO TR 20772:2018).

    2. According to ISO 12312-1, the standard for Polarized lenses is to have a Polarization efficiency >78% for lens category 2, 3 & 4.