When.com Web Search

  1. Ads

    related to: red eyes in darkness

Search results

  1. Results From The WOW.Com Content Network
  2. Closed-eye hallucination - Wikipedia

    en.wikipedia.org/wiki/Closed-eye_hallucination

    This can be seen when the eyes are closed and looking at the back of the eyelids. In a bright room, a dark red can be seen, owing to a small amount of light penetrating the eyelids and taking on the color of the blood it has passed through. In a dark room, blackness can be seen or the object can be more colourful.

  3. Entoptic phenomenon - Wikipedia

    en.wikipedia.org/wiki/Entoptic_phenomenon

    White cells are larger than red blood cells and can be larger than the diameter of a capillary, so must deform to fit. As a large, deformed white blood cell goes through a capillary, a space opens up in front of it and red blood cells pile up behind. This makes the dots of light appear slightly elongated with dark tails.

  4. Purkinje effect - Wikipedia

    en.wikipedia.org/wiki/Purkinje_effect

    An animated sequence of simulated appearances of a red flower (of a zonal geranium) and background foliage under photopic, mesopic, and scotopic conditions. The Purkinje effect or Purkinje phenomenon (Czech: [ˈpurkɪɲɛ] ⓘ; sometimes called the Purkinje shift, often pronounced / p ər ˈ k ɪ n dʒ i /) [1] is the tendency for the peak luminance sensitivity of the eye to shift toward the ...

  5. Adaptation (eye) - Wikipedia

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

    The eye takes approximately 20–30 minutes to fully adapt from bright sunlight to complete darkness and becomes 10,000 to 1,000,000 times more sensitive than at full daylight. In this process, the eye's perception of color changes as well (this is called the Purkinje effect). However, it takes approximately five minutes for the eye to adapt ...

  6. Celebrities Love These Camera-Ready Eye Drops That ... - AOL

    www.aol.com/entertainment/celebrities-love...

    Bloodshot eyes and dark circles for days! If you’ve ever caught awards show or red carpet coverage, you may have wondered how celebs always always glowing with glimmering white eyes to match ...

  7. Peduncular hallucinosis - Wikipedia

    en.wikipedia.org/wiki/Peduncular_hallucinosis

    Peduncular hallucinosis (PH) is a rare neurological phenomenon that causes vivid visual hallucinations that typically occur in dark environments and last for several minutes. Unlike some other kinds of hallucinations, the hallucinations that patients with PH experience are very realistic, and often involve people and environments that are ...

  8. Visual snow syndrome - Wikipedia

    en.wikipedia.org/wiki/Visual_snow_syndrome

    Visual snow is a phenomenon where a person perceives visual disturbances, such as fine graininess or "static," in their field of vision. This can occur in low-light conditions, in the dark, or when the visual system amplifies light perception.

  9. Eyes in the Dark - Wikipedia

    en.wikipedia.org/wiki/Eyes_in_the_Dark

    Eyes in the Dark is a 2010 American horror film written and directed by ... Viewings of the trailer for Eyes in the Dark created curiosity for what the red eyes are. [7]