Talk:Blue field entoptic phenomenon

message: This is a visual effect that is hard to describe in words.  Could we include a snapshot from a simulation such as  http://img32.imageshack.us/img32/2530/bluefieldentoptic.gif  or the actual simulation?  I guess it is an animated gif.  Having a picture like this would help a lot!
:I'll try to make an animated gif showing the phenomenon. The one you linked is good but dots are too big and very few compared to the real phenomenon. Hope I can contribute whith a fresh simulation in the next couple of weeks. Unmismoobjetivo (talk) 03:20, 11 June 2013 (UTC)
thread_title: Illustration?

message: I found this same information here, exactly word for word: http://www.migraine-aura.org/content/e27891/e27265/e42285/e42442/e54887/index_en.html —Preceding unsigned comment added by 74.133.166.73 (talk) 02:22, 19 May 2008 (UTC)
replies: text: Yes, that site plagiarized our content. AxelBoldt (talk) 14:54, 21 May 2008 (UTC)
thread_title: Plagiarized?

message: I've never seen this, but I'm intrigued. Can you give instructions on how to see this phenomenon. I tried looking at a blue computer screen, but don't see anything obvious. Thanks! Aaadddaaammm (talk) 08:13, 14 May 2009 (UTC)
replies: text: The background should be bright, like a bright sky; a computer screen is not bright enough. In my experience the moving dots appear by just staring into the bright sky for more than half a minute. In my experience the sky does not have to be blue, a bright white sky is just as fine. Ceinturion (talk) 08:13, 15 May 2009 (UTC)
replies: text: Try to look as far as you can. You can try to train to focus your sight any way you want with stereograms. Once you can focus and take out focus with your eyes, you just have to take out focus (as if you were looking very far) while looking at a bright blue sky. If you have been swimming in the sea, you won't only see the white cells, you may see even more dots moving even faster, probably because you have some more life in your eye that came from the water. I just tried it yesterday at the beach. 81.34.33.252 (talk) 13:11, 19 July 2009 (UTC)
replies: text: Hmm, in my experience focusing/defocusing has no effect on seeing the moving dots in the sky. For example, I see the moving dots in the blue sky just as easily after removing my glasses (-5 diopters). Swimming in sea has no effect either: a thin film of seawater on the cornea makes no difference.  Ceinturion (talk) 21:23, 21 July 2009 (UTC)
replies: text: I don't know if it's the blue field or random phosphenes, but rubbing my eyes and looking at the sky while swimming in the ocean (pretty much everytime you get water in your eyes) produces bright colored dots that move in random patterns. Lime in the Coconut 13:21, 4 August 2010 (UTC)
replies: text: Rubbing your eyes is unrelated to the blue field entoptic phenomenon; it causes 'pressure phosphenes'. Getting sea water in your eyes has nothing to do with the blue field entoptic phenomenon. A Wikipedia Talk page is not a discussion forum. A better place to discuss sea water in your eyes is a discussion group like sci.med.vision. Ceinturion (talk) 22:49, 4 August 2010 (UTC)
thread_title: How to?

message: Jay yok may, please do not add your personal opinion that the blue field entoptic phenomenon is an after image that appears when walking into a dark room, unless you provide a reference for that claim. 
I removed your opinion because it contradicts the existing references in the article. 
1, 2 Ceinturion (talk) 00:02, 11 December 2010 (UTC)
thread_title:  Phenomenon does not appear when walking into a dark room 

message: Ask on: http://www.reddit.com/r/pics/comments/z9sow/a_photograph_of_the_floaty_things_in_your_eyes  — Preceding unsigned comment added by 84.13.134.66 (talk) 21:35, 4 September 2012 (UTC)
replies: text: That reddit picture of an orb in the air is unrelated to the blue field entoptic phenomenon. Nothing for this Talk page. Elevant (talk) 14:13, 5 September 2012 (UTC)
thread_title:  Picture 

message: I experienced something a lot like this phenomenon earlier, but a little different. Instead of bright white dots, I saw isolated, multicolored rod-like images moving around everywhere, constantly changing color. They appeared when I turned my head and disappeared after five seconds or so. I wasn't looking at a featureless background though; there were lots of things in my vision, like my blue bed, white wall, tan desk, black laptop, etc. But is this still what I experienced, or did I experience something different? 129.15.127.126 (talk) 19:19, 26 October 2013 (UTC)
replies: text: What you saw was not the blue field entoptic phenomenon, because of the colors and the different situation. A better place to discuss your visual experience is a discussion group like sci.med.vision. This Wikipedia Talk page is about the article, not about individual experiences. Ceinturion (talk) 20:25, 26 October 2013 (UTC)

text: I also experience something like that from time to time. I actually checked the talk page to see mentions of this. I think it is related to low blood pressure in my case, because it usually happens when standing up after sitting for a long time. I agree, that this may not be the right place to discuss experiences, but identifying this phenomenon would be a useful addition to this article's "Difference from other entoptic phenomena" section. Kinaro7 (talk) 15:44, 11 January 2017 (UTC)

text: ah thank you. 146.229.200.111 (talk) 19:21, 23 November 2014 (UTC)
thread_title:  Is this what I experienced? 

message: According to stat.grok.se, this page was viewed a 1000 times more often than usual, on december 8th (300,000 instead of 200). Which event at that date might have caused so many people to visit this page? Ceinturion (talk) 22:24, 14 December 2013 (UTC)
thread_title:  1000x more visitors 

message: I have been curious if there have been any studies linking the intensity of this phenomenon to barometric pressure. Reason why I ask is that I've noticed that looking for this phenomenon seems to have a bit of a link. I understand that this is an anecdotal account but I've been exploring it and I have wondered if it could be linked to the pressure in the air leading to the capilaries being expanded so as to allow the phenomenon to appear to move slightly faster leading to an increase of their frequency and speed and as such their noticeability being stronger or more prominent. Mainly low-pressure systems so when the weather is turning to precipitation, it could be feasible to suggest that if there is a link the eyes could, if one trains themselves to differentiate between the two main pressure states could lead to the eyes being a sort of (weak) barometer. 173.206.18.29 (talk) 00:53, 21 April 2014 (UTC)
thread_title:  Is there any research exploring this phenomenon and atmospheric barometric pressure? 

message: I am wondering if the BFEP is what I see when I look at white clouds from an airplane window. I don't see these moving speckles anywhere else. Does anyone have any ideas about this? 95.172.233.137 (talk) 20:52, 10 April 2018 (UTC)
replies: text: Why not simply check the criteria yourself, as nobody else has access to your eyes in the airplane: do your moving speckles appear like tiny bright dots moving quickly along squiggly lines in the visual field? Are the dots short-lived, visible for a second or less, and traveling short distances along seemingly random, curvy paths? Do some of them follow the same path as predecessors? Are some of the dots elongated along the path like tiny worms? Does the speed of the dots vary in sync with the pulse; do they briefly accelerate at each heart beat? Do the dots appear in the central field of view, within 15 degrees from the fixation point? Ceinturion (talk) 20:33, 11 April 2018 (UTC)
thread_title:  Seen from an airplane window? 

message: Do any sources describe this disturbance as affecting people in daily life? I'm thinking of fighter pilots and the like.-- Quisqualis (talk) 18:46, 6 April 2023 (UTC)
thread_title:  Is this pnenomenon entirely benign? 

message: Can someone check the sources on the explanation section? Blood vessels are behind the retina, so a white blood cell cannot distort light headed to the retina. There is no immune system in the eye. I was under the impression that this phenomenon was caused by clumped together protiens in the fluid in the eye. It also doesnt explain why its more common in older individuals, who have weaker immune systems. 2603:7081:5205:B529:5415:DAFD:D471:3A54 (talk) 22:12, 1 April 2024 (UTC)
replies: text: There are two sources of blood supply to the retina: the central retinal artery in front of the retina, and the choroid behind the retina. The blue field entoptic phenomenon (BFEP) is due to blood flowing through the branches of the retinal artery, in front of the retina. The choroid, which you seem to be referring to, is not involved in the BFEP. Do not confuse the BFEP with floaters. Clumped proteins in the vitreous are floaters. Moretim (talk) 10:11, 20 April 2024 (UTC)
thread_title:  Explanation section