Visual Disturbances: Floating Spots in Low Light Conditions - Ophthalmology

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From bright to dark areas, there appears to be a swirling mass in the eye?


Hello doctor, when I move from a bright area to a dark area, I see a swirling mass in my vision.
Even when I close my eyes, I can still feel its presence.
When I look to the left, it drifts to the left, and when I look to the right, it drifts to the right.
It lasts for about 2-3 minutes before disappearing.
Additionally, during this episode, I do not experience any dizziness or nausea.
What could this condition be? Thank you!

andy, 30~39 year old female. Ask Date: 2020/03/26

Dr. Gao Pilin reply Ophthalmology


Hello Andy: Based on your description, the most likely condition is floaters.
If there are no other symptoms, I believe it should be harmless.
However, I still recommend that you get it checked for peace of mind.
In Taiwan, you can visit the ophthalmology department at Puzi Hospital: Monday, Tuesday, Thursday, and Friday from 8:00 AM to 12:00 PM, and Wednesday from 2:00 PM to 4:30 PM.
Online responses can only serve as a reference; if necessary, you should seek medical attention at a healthcare facility.
I hope to have the opportunity to assist you.
Gao Pilin

Reply Date: 2020/03/26

More Info


Hello! Based on your description, it sounds like you are experiencing a phenomenon known as "floaters." Floaters are small spots, specks, or cobweb-like shapes that drift across your field of vision, particularly noticeable when looking at a plain background, such as a clear sky or a white wall. They are often more prominent in low-light conditions, which aligns with your experience of seeing them when transitioning from a bright to a dark environment.

Floaters are typically caused by changes in the vitreous humor, the gel-like substance that fills the eye. As we age, the vitreous can become more liquid and may pull away from the retina, leading to the formation of these floaters. They are generally harmless and a common occurrence, especially in individuals who are nearsighted or have had cataract surgery.

The fact that you notice these floaters moving in response to your eye movements is also typical. Floaters tend to drift in the vitreous fluid, and when you move your eyes, they appear to move as well. This can create the sensation that they are following your gaze. The duration of 2-3 minutes that you mentioned is also consistent with how floaters can be perceived; they may linger for a short time before becoming less noticeable as your brain adapts to them.

It's reassuring that you do not experience any accompanying symptoms such as dizziness or nausea, which could indicate a more serious issue. However, if you notice a sudden increase in the number of floaters, flashes of light, or a shadow or curtain effect in your vision, it is essential to seek medical attention promptly, as these could be signs of retinal detachment or other serious conditions.

In summary, what you are experiencing seems to be a benign condition related to the vitreous humor in your eyes. However, if you have any concerns or if your symptoms change, it would be wise to consult with an eye care professional for a thorough examination. Regular eye check-ups are important, especially if you have a history of vision problems or if you notice any new changes in your vision.

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