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Medical Forum / General / Vision / October 2005Bright circles with eyes closed and moving
I've had a rather odd effect for years now, like a good decade or so. In the dark, with the eyes closed, normally in bed, I can get quite bright circles, one in each eye, something like about 20% in diameter, when I look from one side to the other. The bright image only lasts while the eyes are actually moving and they are a circle, not bright in the middle, with the bright part at most say 2% of the diameter. Quite bright, very noticeable. Dont get it all the time, not at all clear what its associated with when I do get it. Maybe only get it about 5% of the time. The GP had clearly never heard of it, suggested that I ask the optometrist the next time I got a prescription, and I managed to forget and dont get an eye exam very often at all, my short sight changes quite slowly and I only bother when I need new lenses when medium distance sharpness, at say 3M, has gone. Not something that is easy with google without a name. Rod Speed put fingers to keyboard and typed... > I've had a rather odd effect for years now, like a good decade or so. > [quoted text clipped - 15 lines] > > Not something that is easy with google without a name. Try to Google for 'phosphenes' 'entoptic phenomena'  SignatureShabs. > Rod Speed put fingers to keyboard and typed... > [quoted text clipped - 19 lines] > > Try to Google for 'phosphenes' 'entoptic phenomena' Yeah, that certainly looks like it, particularly the pics on P9 http://www.bausch.com/us/resource/pharma/proview_flipchart.pdf >> Rod Speed put fingers to keyboard and typed... >> [quoted text clipped - 6 lines] >>> are a circle, not bright in the middle, with the bright part at >>> most say 2% of the diameter. Quite bright, very noticeable. >> Try to Google for 'phosphenes' 'entoptic phenomena' > >Yeah, that certainly looks like it, particularly the pics on P9 >http://www.bausch.com/us/resource/pharma/proview_flipchart.pdf Do other people see those complete circles? When I do the exact procedure described in that pdf, I see half a circle at the very edge of my vision, with the outer half cut off beyond the edge where there is only blackness. If I move the pressure point around the edge of my eyeball, there are directions where only a tiny bit of the bright circle is visible, rather than half. There are also directions where what would be the outer half of the circle turns and spreads outward along maybe one-fourth of the blackness boundary, rather than joining back together. But no direction where the complete circle is visible. Always curious... Loren > Rod Speed <rod_speed@yahoo.com> wrote >>> Rod Speed <rod_speed@yahoo.com> wrote >>>> I've had a rather odd effect for years >>>> now, like a good decade or so. >>>> In the dark, with the eyes closed, normally in bed, I can get >>>> quite bright circles, one in each eye, something like about 20% >>>> in diameter, when I look from one side to the other. The bright >>>> image only lasts while the eyes are actually moving and they >>>> are a circle, not bright in the middle, with the bright part at >>>> most say 2% of the diameter. Quite bright, very noticeable. >>> Try to Google for 'phosphenes' 'entoptic phenomena' >> Yeah, that certainly looks like it, particularly the pics on P9 >> http://www.bausch.com/us/resource/pharma/proview_flipchart.pdf > Do other people see those complete circles? I'm not sure I always do, I've got a vague recollection that they arent always complete, tho certainly mostly complete. I havent had a chance to check again, I only get that effect at night and only from memory when I wake up, not immediately on going to bed. > When I do the exact procedure described in that pdf, I see > half a circle at the very edge of my vision, with the outer > half cut off beyond the edge where there is only blackness. I dont get any effect at all myself in daytime, tho admittedly I didnt press hard enough to be too uncomfortable. > If I move the pressure point around the edge of my eyeball, there > are directions where only a tiny bit of the bright circle is visible, > rather than half. There are also directions where what would be > the outer half of the circle turns and spreads outward along maybe > one-fourth of the blackness boundary, rather than joining back > together. But no direction where the complete circle is visible. > Always curious... Dont forget what that did to the cat. > Loren Amelang <loren@pacific.net> wrote >>> S Akky <nospamforme@themoment.com> wrote >>>>> I've had a rather odd effect for years >>>>> now, like a good decade or so. >>>>> In the dark, with the eyes closed, normally in bed, I can get >>>>> quite bright circles, one in each eye, something like about 20% >>>>> in diameter, when I look from one side to the other. The bright >>>>> image only lasts while the eyes are actually moving and they >>>>> are a circle, not bright in the middle, with the bright part at >>>>> most say 2% of the diameter. Quite bright, very noticeable. >>>> Try to Google for 'phosphenes' 'entoptic phenomena' >>> Yeah, that certainly looks like it, particularly the pics on P9 >>> http://www.bausch.com/us/resource/pharma/proview_flipchart.pdf >> Do other people see those complete circles? > I'm not sure I always do, I've got a vague recollection that > they arent always complete, tho certainly mostly complete. Yeah, not always complete on waking this am. > I havent had a chance to check again, I only get > that effect at night and only from memory when > I wake up, not immediately on going to bed. Just checked it again, this time there isnt a very pronounced effect, not very bright circles, and they faded away with only a few eye movements, basically fading to a situation where it wasnt clear if there was anything much visible or none at all. Didnt return with the eyes rested for a bit, and then I got up. >> When I do the exact procedure described in that pdf, I see >> half a circle at the very edge of my vision, with the outer >> half cut off beyond the edge where there is only blackness. > I dont get any effect at all myself in daytime, tho admittedly > I didnt press hard enough to be too uncomfortable. >> If I move the pressure point around the edge of my eyeball, there >> are directions where only a tiny bit of the bright circle is visible, >> rather than half. There are also directions where what would be >> the outer half of the circle turns and spreads outward along maybe >> one-fourth of the blackness boundary, rather than joining back >> together. But no direction where the complete circle is visible. >> Always curious... > Dont forget what that did to the cat. > Not something that is easy with google without a name. It sounds like a "partial vitreous detachment," something everyone gets, to some degree. -MT > Rod Speed <rod_speed@yahoo.com> wrote >> Not something that is easy with google without a name. > It sounds like a "partial vitreous detachment," something everyone gets, to > some degree. Dunno, I would have expected the GP to have known what it was if it was that. He's pretty competant otherwise and I've used him for decades now. Looks more like phosphenes now I have that name. > Dunno, I would have expected the GP to have known > what it was if it was that. He's pretty competant > otherwise and I've used him for decades now. He's heard of "vitreous detachment". > Looks more like phosphenes now I have that name. Phosphenes are a general term for visible responses to physical stimulation of the retina. Phosphenes like yours are usually caused by partially-attached vitreous tugging at your retina. The biggest clue is that it appears when you move your eyes. It isn't always possible to see vitreous strands when looking into the eye, and it's often impossible with the ophthalmoscope your GP uses. -MT > Rod Speed <rod_speed@yahoo.com> wrote >> Dunno, I would have expected the GP to have known >> what it was if it was that. He's pretty competant >> otherwise and I've used him for decades now. > He's heard of "vitreous detachment". Sure, I obviously meant that producing that particular set of symptoms that I get. >> Looks more like phosphenes now I have that name. > Phosphenes are a general term for visible responses to physical stimulation of > the retina. Yes, and that is likely why I only get it when the eyes are moving. > Phosphenes like yours are usually caused by partially-attached vitreous > tugging at your retina. Why would that produce circles in both eyes simultaneously ? Maybe I didnt say that clearly enough initially, when I get that effect, it happens in both eyes simultaneously and when I am not getting that effect, its missing in both eyes simultaneously. And I should have said that sometimes I dont get the very pronounced bright circular rings, at other times its much less pronounced and more of a filled in circle, again in both eyes simultaneously. > The biggest clue is that it appears when you move your eyes. Yes, but its hard to explain the simultaneous effect in both eyes. > It isn't always possible to see vitreous strands when looking into the eye, > and it's often impossible with the ophthalmoscope your GP uses. He didnt use anything, just said that he had not heard of that effect and suggested I ask the opthalmologist.
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