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- Q4930082 subject Q6467949.
- Q4930082 subject Q7131172.
- Q4930082 subject Q7232964.
- Q4930082 abstract "The blue field entoptic phenomenon or Scheerer's phenomenon (after the German ophthalmologist Richard Scheerer, who first drew clinical attention to it in 1924) is the appearance of tiny bright dots (nicknamed blue-sky sprites) moving quickly along squiggly lines in the visual field, especially when looking into bright blue light such as the sky. The dots are short-lived, visible for a second or less, and traveling short distances along seemingly random, curvy paths. Some of them follow the same path as predecessors. The dots may be elongated along the path like tiny worms. The dots appear in the central field of view, within 10 to 15 degrees from the fixation point. The left and right eye see different dots; someone looking with both eyes sees a mixture.Most people are able to see this phenomenon. However, it is rather weak, and many people don't notice it until asked to pay attention.However, in very rare cases, when experienced in conjunction with "visual snow", these factors can be enhanced. Sometimes expanding the field to the periphery as well, and sustaining the visibility indefinitely.".
- Q4930082 thumbnail Blue_field_entoptic_phenomenon_animation.gif?width=300.
- Q4930082 wikiPageExternalLink watch?v=S2-ZP4CTgLQ.
- Q4930082 wikiPageWikiLink Q103142.
- Q4930082 wikiPageWikiLink Q1072103.
- Q4930082 wikiPageWikiLink Q142807.
- Q4930082 wikiPageWikiLink Q169342.
- Q4930082 wikiPageWikiLink Q2337182.
- Q4930082 wikiPageWikiLink Q326710.
- Q4930082 wikiPageWikiLink Q352374.
- Q4930082 wikiPageWikiLink Q37187.
- Q4930082 wikiPageWikiLink Q41364.
- Q4930082 wikiPageWikiLink Q42395.
- Q4930082 wikiPageWikiLink Q430024.
- Q4930082 wikiPageWikiLink Q506922.
- Q4930082 wikiPageWikiLink Q6467949.
- Q4930082 wikiPageWikiLink Q7131172.
- Q4930082 wikiPageWikiLink Q7232964.
- Q4930082 wikiPageWikiLink Q7430070.
- Q4930082 wikiPageWikiLink Q748049.
- Q4930082 wikiPageWikiLink Q865103.
- Q4930082 wikiPageWikiLink Q905422.
- Q4930082 comment "The blue field entoptic phenomenon or Scheerer's phenomenon (after the German ophthalmologist Richard Scheerer, who first drew clinical attention to it in 1924) is the appearance of tiny bright dots (nicknamed blue-sky sprites) moving quickly along squiggly lines in the visual field, especially when looking into bright blue light such as the sky. The dots are short-lived, visible for a second or less, and traveling short distances along seemingly random, curvy paths.".
- Q4930082 label "Blue field entoptic phenomenon".
- Q4930082 depiction Blue_field_entoptic_phenomenon_animation.gif.