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2. Glare (vision) - Wikipedia

   en.wikipedia.org/wiki/Glare_(vision)

   Glare (vision) Glare from a camera flash during a Sumo fight. Glare is difficulty of seeing in the presence of bright light such as direct or reflected sunlight or artificial light such as car headlamps at night. Because of this, some cars include mirrors with automatic anti-glare functions and in buildings, blinds or louvers are often used to ...

3. Visual snow syndrome - Wikipedia

   en.wikipedia.org/wiki/Visual_snow_syndrome

   Visual snow syndrome. Visual Snow can appear at any time, but it commonly appears at birth, late teenage years, and early adulthood. Visual snow syndrome ( VSS) is an uncommon neurological condition in which the primary symptom is that affected individuals see persistent flickering white, black, transparent, or colored dots across the whole ...

4. Photokeratitis - Wikipedia

   en.wikipedia.org/wiki/Photokeratitis

   Photokeratitis or ultraviolet keratitis is a painful eye condition caused by exposure of insufficiently protected eyes to the ultraviolet (UV) rays from either natural (e.g. intense direct or reflected sunlight) or artificial (e.g. the electric arc during welding) sources. Photokeratitis is akin to a sunburn of the cornea and conjunctiva.

5. Snow goggles - Wikipedia

   en.wikipedia.org/wiki/Snow_goggles

   The goggles fit tightly against the face so that the only light entering is through the slits, and soot is sometimes applied to the inside to help cut down on glare. [2] [5] [6] The slits are made narrow not only to reduce the amount of light entering but also to improve the visual acuity. [2] Wider slits result in a larger field of view. [2]

6. Night-vision device - Wikipedia

   en.wikipedia.org/wiki/Night-vision_device

   First-person view through night-vision goggles of the FBI Hostage Rescue Team using an airboat. A night-vision device (NVD), also known as a night optical/observation device (NOD) or night-vision goggle (NVG), is an optoelectronic device that allows visualization of images in low levels of light, improving the user's night vision.

7. If you live in a storm-prone area you need these night lights ...

   www.aol.com/lifestyle/nightlight-that-doubles-as...

   Sunbeam 16988 5-In-1 Night Light & Emergency Flashlight (3 pack) $40 $50 Save $10. When the power goes out, you'll be ready with this combination nightlight that converts into an emergency ...