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I see veins.
I had laser treatment for a torn retina about 6 months ago. I don't know if that is related to the present condition.

When I close my eyes then open them, for a fraction of a second I see a pattern that could be the vein pattern on my retina. That's what it looks like anyway, like looking at a map of a river and its tributaries. This only happens in my left eye, the one that was lasered.

Has anyone seen something similar and is this any cause for concern?
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Harold. That's a normal reaction. Nothing to worry about at all. It's one of several entopic phenomena that are frequently posted here because they alarm people.  That pattern is the arteries and veins on your retina. They lie over the rods and cones that we see with. When light comes into the eye at an angle its possible to see the inside of your eye, floaters are also visible this way sometimes.

If you want to really see the problem take a penlight, close your eyes and place the penlight against your eyelide (over the covered cornea). Don't use anything but very light pressure. Move the light especially in a dark room and you'll be able to see the vessels in both eye.


JCH MD
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Why does it only happen with one of his eyes?  It's the same with me.
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Thanks.
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hey
agreed completely that u might see veins in the operated eye......i had informed my dr bout the same and he had told me the same what harold replied.....

aaomd i got a query for u.....i was operated a cryo for my retinal detachment few years back.......now wen i raise my head i can see the cryo mark .....or wat i think is the cryo mark........is it possible to see the cryo mark with naked eyes......its like the moon crescent but not continuos......please lemme know......
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Normally tears in the retina occur is the extreme far periphery of the retina that is not a functional part of our peripheral vision. So it's very rare to have a person see the torn area. It is possible if the tear was in the functional part of the retina and there was a lot of laser for a big tear that it might cause a defect.  On the other hand if this "moon crescent" floats around and is near the center of your vision its more likely a "Weiss Ring" (this was discussed recently in the eye forum, you can access it by using the search feature on this page.

When you see your eye surgeon you might mention this. Two tests 1. an amsler grid and 2. a visual field test done together could tell whether your cryo scars are causing the thing your see.

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Dr Hagan,

I had a vitrectomy 4 months ago, with follow-up cataract surgery two months ago.  I am still seeing a bright, complex vein pattern in the left third of my eye.  My surgeon is excellent, and told me we have to let nature take it's course.  The vein pattern is very sensitive to light, & sometimes seems to be flashing.  I have another appt in one month.  Should I be concerned before then?
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757137 tn?1347200053
You can also see drusen.
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233488 tn?1310696703
I would say you should see your cataract surgeon retina surgeon sooner than 1 month.
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i see veins in one eye when i blink.  why?  I am 63 and just started.  No surgery or injuries.
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Harold, I'm experiencing exactly the same situation,  you make a good description "like a map of rivers", except I have not had eye surgery. Actually when this started to happen it was in both eyes: for a fraction of a second after blinking, particularly when looking at at a white surface I would see the "map of rivers", the right eye got better but the left eye is getting worse.  Guess what? My general practitioner had no clue what it was, sent me to an ophthalmologist, no clue either never the less she tested me for glaucoma so she could charge, of course. Since she had no clue she sent me to another ophthalmologist, my appointment will be next friday. Starting to feel hopeless .
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I'm experiencing something very similar. I'm diabetic type 2 for some 10 years now. I basically started experiencing the very same symptoms you describe. I noticed it when I went to the beach and I could see the "river pattern" when the sun hit my eyes in certain way (while my eyes were closed). I thought I was seeing my eyelids veins and didn't give too much importance. But now when the sun hits my eyes in a certain angle the pattern is more visible. I've also noticed that my eyes are too sensitive. I takes me longer to recover my vision when it's dark and I turn on the lights or when I look at bright or dark objects. I'm starting to get worried. Two eye doctors have seen me and performed tests with no results.
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177275 tn?1438375244
That's a normal reaction. Nothing to worry about at all. It's one of several entopic phenomena that are frequently posted here because they alarm people.  That pattern is the arteries and veins on your retina. They lie over the rods and cones that we see with. When light comes into the eye at an angle its possible to see the inside of your eye, floaters are also visible this way sometimes.

If you want to really see the problem take a penlight, close your eyes and place the penlight against your eyelide (over the covered cornea). Don't use anything but very light pressure. Move the light especially in a dark room and you'll be able to see the vessels in both eye.

Also adaptation to and from "light" vision to "twilight" vision to "dark vision" systems in the eye are slower and less effective as we age, in diabetics, in smokers, in people with certain retina/macula problems.


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177275 tn?1438375244
Yes that is a normal entopic phenomenon. Has nothing to do with the laser. If you want to know more read the section in wikipedia.com on entopic phenomenon.  
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