Traumatic Brain Injury and Post Concussion Syndrome For traumatic brain injury (TBI) and post concussion syndrome (PCS).


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Old 02-13-2021, 08:05 AM #1
Merope Merope is offline
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Default Can a concussion cause glare?

After suffering a concussion about six weeks ago, I noticed that I see starbursts around bright lights. Whenever I blink, the light elongates.

I had my eyes checked numerous times (slit lamp exams, ocular tomography scans etc) and they are healthy. I assume the problem is with the brain. I donít have light sensitivity or blurry vision, though my lazy eye does feel somewhat lazier than usual. I donít get double vision though, unless my eye squints (happens when Iím very tired).

Anyway, has anyone experiences glare around bright lights as a result of a concussion? Does it get better with time? Iíve noticed the glare isnít there at all when looking at lights through slightly tinted windows (like on a train). I also donít have light sensitivity...unless seeing glare is a type of light sensitivity? I always assumed light sensitivity is when light hurts your eyes...but I can look at bright lights without much discomfort, just like before my concussion.
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Old 02-13-2021, 02:08 PM #2
Mark in Idaho Mark in Idaho is offline
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It sounds like you are just more aware of things that have likely always been there but are just more noticeable because your brain has lost some ability to ignore these sensations.

It likely has more to do with the tear film on your eye than anything else. I have a tear disorder. When I do an eye test. I get these same disturbances if I blink as I am looking at the eye chart. The letters will distort until the tear film smooths out.

You could try using eye moisturizing drops. I like the drops that contain hyaluronic acid. That is a moisturizing substance often used in skin creams because it helps moisturize human tissues. It is often listed as sodium hyaluronate.
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Old 02-16-2021, 01:12 PM #3
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Quote:
Originally Posted by Mark in Idaho View Post
It sounds like you are just more aware of things that have likely always been there but are just more noticeable because your brain has lost some ability to ignore these sensations.

It likely has more to do with the tear film on your eye than anything else. I have a tear disorder. When I do an eye test. I get these same disturbances if I blink as I am looking at the eye chart. The letters will distort until the tear film smooths out.

You could try using eye moisturizing drops. I like the drops that contain hyaluronic acid. That is a moisturizing substance often used in skin creams because it helps moisturize human tissues. It is often listed as sodium hyaluronate.
I think youíre right, thank you for the input. I just realised that the elongation of light seems to happen as a result of my eyelashes? Or rather, the way the eyelashes reflect light. Probably there all along but not noticeable when my brain wasnít concussed.

I will look into the drops you mentioned and hope for the best.

Thanks again!
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Old 02-17-2021, 03:43 AM #4
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Quote:
Originally Posted by Merope View Post
After suffering a concussion about six weeks ago, I noticed that I see starbursts around bright lights. Whenever I blink, the light elongates.

I had my eyes checked numerous times (slit lamp exams, ocular tomography scans etc) and they are healthy. I assume the problem is with the brain. I donít have light sensitivity or blurry vision, though my lazy eye does feel somewhat lazier than usual. I donít get double vision though, unless my eye squints (happens when Iím very tired).

Anyway, has anyone experiences glare around bright lights as a result of a concussion? Does it get better with time? Iíve noticed the glare isnít there at all when looking at lights through slightly tinted windows (like on a train). I also donít have light sensitivity...unless seeing glare is a type of light sensitivity? I always assumed light sensitivity is when light hurts your eyes...but I can look at bright lights without much discomfort, just like before my concussion.

Hey Merope,

Yes. It is normal to see glare around lights.

1) Lights by their very nature may cause glare. This is a natural phenomenon.

2)The eye is not a camera it is an imperfect living optical system with a blood supply and nerve supply and retina connected to the visual cortex in the brain. Optical illusions are therefore possible. These are natural phenomena

3) Perception requires a subject, a visual system and a brain to observe, make and interpret an image. That glare has always been there for you but you have become hyper aware of your eyes since your head trauma. It is your perception that has changed. How you notice and interpret images. This is perfectly understandable. It happens a lot.


You have had your eyes checked on numerous occasions. Everything is ok. The optometrist would have checked your tear layer with a slit lamp. Whilst Mark's suggestion is useful, it is something an optometrist would have picked up on. Tear layer anomalies occur later in life and are extremely unlikely at 27 so Mark's advice is inappropriate in your case.

Next time you find yourself looking at lights etc, imagine a big tick, maybe like the Nike Logo or a different one maybe black or green. Watch that tick become larger and more vivid and let it grow in you mind's eye to remind yourself that everything is OK .

Because everything is OK
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Old 02-17-2021, 04:28 AM #5
Mark in Idaho Mark in Idaho is offline
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I have notice vision differences due to tears as long as I can remember. Halos and moving objects with glistening lines. People with brain injuries often process visual images differently. Our brains do not ignore the many distractions as well as healthy brains do. It can be very annoying. We have to learn to not get too focused on these annoyances.

As a younger person, I would blink to see what images would manifest and try to see it there was a pattern or if I could manipulate the image. At about 40 yo, I complained about them to an optometrist and was referred to an ophtho to get checked. They were explained at debris and a sort of double vision or stretched image due to my strong astigmatism that was only partially corrected with corrective lenses. Oncoming cars looked like they had a second and third pair of headlights, one bold set at 1-2 o'clock (right eye) and a fainter set at 10-11 o'clock (left eye).
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