Yellow Shadows in Vision: Eye Health Concerns Explained - Ophthalmology

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Strange yellow shadow?


Hello Doctor: I had a dilated eye exam at a major hospital three days ago, and the retina specialist said the results were normal.
However, when I look at things from a certain angle (diagonally), I can see a yellow shadow that seems to move.
When I take off my glasses (or switch to another pair), I still notice it, but it's less pronounced.
I forgot to ask the doctor about this at the time.
Could this indicate a problem with my macula? If so, would it have been detectable during the dilated exam? The doctor mentioned everything was normal but didn't elaborate further.
This issue is causing me anxiety.
Is it a problem with my glasses or my eyes? Additionally, my prescription has increased by about 100 degrees over the past seven years; is that considered a significant change? Thank you.

Niming, 30~39 year old female. Ask Date: 2023/09/21

Dr. Gao Pilin reply Ophthalmology


Hello: If your prescription has increased by 100 degrees over the past seven years, while this may not seem significant, it is important to investigate the reasons behind it.
This could be due to inadequate vision care or other underlying factors.
As for the yellow shadow you are seeing, it may be related to various factors, including the refraction of light, the shape of the eyeball, or possibly the characteristics of your eyeglass lenses.
This situation is unlikely to be related to the macula, as issues with the macula typically do not present as yellow shadows.
However, if you are feeling confused or anxious about this condition, it is advisable to return to an ophthalmologist for a thorough examination and to describe your symptoms in detail for further evaluation and to determine if additional tests are necessary.

Reply Date: 2023/09/21

More Info


Hello! Thank you for your questions regarding the yellow shadows you are experiencing in your vision and your concerns about your eye health. It’s understandable to feel anxious about changes in your vision, especially after a recent eye examination.

Firstly, the phenomenon of seeing yellow shadows or halos, particularly when viewing objects at certain angles, can be attributed to several factors. One possibility is that it could be related to the way light is refracted in your eye, especially if you have any irregularities in your cornea or lens. This can sometimes create visual distortions, including colored shadows or halos around objects. Another potential cause could be related to the quality of your eyeglasses. If your prescription has changed or if the lenses are scratched or dirty, this could affect your vision and lead to unusual visual experiences.

Regarding your concern about the macula (the central part of the retina responsible for detailed vision), it is reassuring that your recent dilated eye exam showed normal results. During such an examination, an eye doctor can assess the health of the retina, including the macula. If there were significant issues with the macula, such as macular degeneration or other retinal diseases, these would typically be visible during the examination. However, it’s important to note that some subtle changes may not be immediately apparent, and follow-up examinations can be beneficial if symptoms persist.

Your mention of a 100-degree increase in your prescription over seven years is noteworthy. While this may not seem excessive to some, it can indicate a progression in refractive error, which might be due to various factors, including age, eye strain, or underlying conditions. Regular eye exams are crucial to monitor these changes and ensure that your prescription is up to date, as wearing the correct lenses can significantly impact your visual comfort and clarity.

If you continue to experience the yellow shadows or any other visual disturbances, it would be wise to follow up with your eye care provider. They may recommend additional tests, such as optical coherence tomography (OCT) or visual field tests, to further investigate your symptoms. It’s essential to communicate your concerns clearly during your appointments, as this will help your doctor provide the best care.

In the meantime, consider practicing good eye hygiene and taking breaks during prolonged periods of reading or screen time. The 20-20-20 rule is a helpful guideline: every 20 minutes, look at something 20 feet away for at least 20 seconds. This can help reduce eye strain and fatigue.

Lastly, regarding the use of supplements like lutein and vitamins for eye health, while they can be beneficial for some individuals, they should not replace regular eye care or a balanced diet. It’s always best to discuss any supplements with your healthcare provider to ensure they are appropriate for your specific needs.

In summary, while the yellow shadows you are experiencing could be related to several factors, including your eyeglasses or light refraction issues, it’s essential to maintain open communication with your eye care provider. Regular check-ups and addressing any new symptoms promptly will help ensure your eye health remains a priority. If you have further concerns or if your symptoms worsen, don’t hesitate to seek a second opinion or additional testing. Your vision is important, and staying proactive about your eye health is key.

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