Is It My Eyes or the Light? Visual Disturbances at Work

Q: Is It My Eyes or the Light? Visual Disturbances at Work

Hello, Totoro： It seems that the flickering is due to the light. <br>Some people are less sensitive and may not notice it. <br>If it doesn't happen elsewhere, then it is definitely a malfunction of the light. <br>If it has occurred in other places as well, then it could be an iss

Is the issue with the light or with the eyes?

Hello Doctor: This issue has been bothering me for two to three months.
The T8 light fixtures in our office are newly installed, and I work underneath them.
Sometimes, during a case that lasts 1-2 hours, I feel like the light flickers once every few days, similar to the sensation when a high-current device is suddenly used, causing the light to momentarily dim.
However, I am certain that no high-current devices are being used, so I initially thought there was a problem with the light.
I even requested repairs for replacement.
But today, I asked my colleague across from me if she has noticed the light flickering occasionally, and she said she hasn't!? I would like to ask the doctor: 1.
Could there be an eye condition that might cause this illusion of the light flickering? 2.
Or is it possible that the light is indeed malfunctioning, but my colleague is not sensitive to electrical issues and hasn't noticed it?

Long Tao, 30~39 year old female. Ask Date: 2016/01/11

Dr. Gao Pilin reply Ophthalmology

Hello, Totoro: It seems that the flickering is due to the light.
Some people are less sensitive and may not notice it.
If it doesn't happen elsewhere, then it is definitely a malfunction of the light.
If it has occurred in other places as well, then it could be an issue with your eyes.
In that case, you should see an ophthalmologist for an examination.
In Taiwan, the Department of Ophthalmology at Puzi Hospital is open Monday to Friday from 8:00 AM to 12:00 PM and Wednesday afternoons from 1:00 PM to 4:30 PM.
We hope to have the opportunity to serve you.
Gao Pilin

Reply Date: 2016/01/11

More Info

Visual disturbances can be quite perplexing, especially when they occur in specific environments like your workplace. Based on your description, it seems you are experiencing intermittent sensations of flickering light while working under T8 fluorescent lights. This phenomenon can be attributed to a variety of factors, both ocular and environmental.

1. Ocular Factors:
- Visual Fatigue: Prolonged exposure to artificial lighting, particularly fluorescent lights, can lead to visual fatigue. This condition may cause your eyes to struggle with focusing, leading to sensations that may feel like flickering lights. When your eyes are tired, they may not process visual information as effectively, which can create illusions or distortions in what you see.

- Migraine Aura: Some individuals experience visual disturbances as part of a migraine aura, even without a headache. This can include flickering lights or spots in the visual field. If you have a history of migraines, this could be a potential explanation.

- Retinal Issues: While less likely, certain retinal conditions can cause similar symptoms. If you have a history of retinal issues or if these disturbances are accompanied by other symptoms (like flashes of light or a sudden increase in floaters), it would be prudent to consult an eye care professional.

2. Environmental Factors:
- Flickering Lights: T8 fluorescent lights can sometimes flicker due to electrical issues or aging components. If the lights are not functioning properly, they may create a visual disturbance that could be perceived differently by different individuals. Your colleague may not be as sensitive to these fluctuations, or they may not be as noticeable to her.

- Light Sensitivity: Individual sensitivity to light can vary significantly. Some people may be more attuned to subtle changes in lighting conditions, while others may not notice them at all. This could explain why you perceive the flickering while your colleague does not.

Recommendations:
- Eye Examination: It would be beneficial to have a comprehensive eye examination to rule out any underlying ocular conditions. This is especially important if you notice any changes in your vision or if the disturbances become more frequent or severe.

- Lighting Assessment: Consider discussing the lighting conditions with your office management. If the lights are indeed flickering, it may be worth having them checked or replaced. Additionally, using task lighting that is less harsh than fluorescent lights can help reduce eye strain.

- Breaks and Eye Care: Ensure you take regular breaks from your screen and practice the 20-20-20 rule: every 20 minutes, look at something 20 feet away for at least 20 seconds. This can help alleviate visual fatigue.

- Document Symptoms: Keep a log of when these disturbances occur, their duration, and any accompanying symptoms. This information can be valuable for your eye care provider.

In conclusion, while it is possible that your visual disturbances are related to your eyes, it is equally plausible that they are influenced by your work environment. A thorough evaluation by an eye care professional can provide clarity and help you manage your symptoms effectively.

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