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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. Night vision - Wikipedia

   en.wikipedia.org/wiki/Night_vision

   Night vision is the ability to see in low-light conditions, either naturally with scotopic vision or through a night-vision device. Night vision requires both sufficient spectral range and sufficient intensity range. Humans have poor night vision compared to many animals such as cats, dogs, foxes and rabbits, in part because the human eye lacks ...

4. AN/PSQ-20 - Wikipedia

   en.wikipedia.org/wiki/AN/PSQ-20

   The AN/PSQ-20 Enhanced Night Vision Goggle ( ENVG) is a third-generation passive monocular night vision device developed for the United States Armed Forces by ITT Exelis. It fuses image-intensifying and thermal-imaging technologies, enabling vision in conditions with very little light. The two methods can be used simultaneously or individually.

5. Adaptation (eye) - Wikipedia

   en.wikipedia.org/wiki/Adaptation_(eye)

   Adaptation (eye) In visual physiology, adaptation is the ability of the retina of the eye to adjust to various levels of light. Natural night vision, or scotopic vision, is the ability to see under low-light conditions. In humans, rod cells are exclusively responsible for night vision as cone cells are only able to function at higher ...

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. LASIK - Wikipedia

   en.wikipedia.org/wiki/LASIK

   Based on their experience, the United States Air Force has described WFG-Lasik as giving "superior vision results". Topography-assisted. Topography-assisted LASIK is intended to be an advancement in precision and reduce night-vision side effects. The first topography-assisted device received FDA approval September 13, 2013.