Visual Disturbances After Retinal Laser Treatment - Ophthalmology

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Seeing white light


Two weeks ago, I visited an ophthalmology clinic, and the doctor informed me that the upper part of my right eye's retina was thinning, which posed a risk.
As a result, I underwent laser treatment.
It seems that after the procedure, I started experiencing a sensation of a swirling white light that changes shape when I close my eyes.
This occurs in the lower left part of my visual field and lasts for a few minutes before disappearing.
When I open my eyes and look straight ahead, I see a white light that appears to float as if blown by the wind, also in the lower left part of my visual field, and I can see it almost all day.
Strangely, both types of white light are visible in my left eye, even though the laser treatment was done on my right eye, and the doctor did not make any mistakes.
Today, I returned for a follow-up appointment, but the doctor stated that there were no abnormalities in my left eye's retina and could not provide an explanation.
However, I am constantly seeing these phenomena, which is quite concerning.
I would like to ask the doctor what might be causing this situation.
Thank you!

Xiao Lin, 20~29 year old female. Ask Date: 2006/05/25

Dr. Hu Yusheng reply Ophthalmology


Hello Mr.
Kobayashi: The white light you see in your left eye may indeed be unrelated to the laser treatment in your right eye.
The possible causes for the white light in your left eye include: 1.
Vitreous degeneration or localized opacities.
2.
Vitreous traction causing localized retinal issues.
3.
Other causes leading to visual hallucinations.
(I recommend that you consult your physician for a thorough examination.
If it still does not seem to be an eye issue, you may need to see a neurologist for further evaluation.) Wishing you health and happiness! Thank you!

Reply Date: 2006/05/25

More Info


After undergoing retinal laser treatment, experiencing visual disturbances can be concerning, especially when the symptoms seem to originate from an eye that did not receive the treatment. In your case, you mentioned seeing white light patterns and shapes in your left eye, despite the laser procedure being performed on your right eye. This situation raises several important considerations.

Firstly, it is essential to understand that visual disturbances after laser treatment can occur for various reasons. One possibility is that the laser treatment itself can lead to changes in the vitreous gel that fills the eye. This gel can pull on the retina, causing sensations such as flashes of light or floaters. These symptoms can sometimes be perceived in the opposite eye due to the interconnected nature of visual processing in the brain. The brain may interpret signals from one eye in relation to the other, leading to perceived disturbances in the untreated eye.

Another potential explanation for your symptoms could be related to the phenomenon known as "visual snow" or persistent visual disturbances that can occur after any significant change in the eye, including surgery. This condition is characterized by seeing static or flickering lights, which can be distressing. It is also possible that the brain is still adjusting to the changes in your vision after the laser treatment, which can take time.

Moreover, anxiety and stress about your eye health can exacerbate the perception of visual disturbances. The mind can become hyper-aware of visual inputs, leading to a heightened perception of any anomalies. This psychological aspect should not be overlooked, as it can significantly impact how you experience and interpret visual phenomena.

Given that your follow-up examination revealed no abnormalities in your left eye, it is crucial to monitor your symptoms closely. If the disturbances persist or worsen, or if you experience additional symptoms such as flashes of light, a sudden increase in floaters, or a shadow in your vision, you should seek immediate medical attention. These could be signs of retinal detachment or other serious conditions that require prompt intervention.

In terms of management, here are some recommendations:
1. Follow-Up Appointments: Continue to attend your follow-up appointments as scheduled. Regular monitoring by your ophthalmologist is essential to ensure that any potential issues are caught early.

2. Visual Rest: If you find that your symptoms worsen with prolonged visual tasks, consider taking regular breaks to rest your eyes. The 20-20-20 rule is a good guideline: every 20 minutes, look at something 20 feet away for at least 20 seconds.

3. Stay Calm: Anxiety can exacerbate visual disturbances. Engaging in relaxation techniques such as deep breathing, meditation, or gentle exercise may help alleviate some of the stress associated with your symptoms.

4. Document Symptoms: Keep a diary of your visual disturbances, noting when they occur, their duration, and any associated activities. This information can be valuable for your doctor in assessing your condition.

5. Nutritional Support: While there is no specific diet that can cure visual disturbances, maintaining a balanced diet rich in antioxidants (found in fruits and vegetables) can support overall eye health. Omega-3 fatty acids, found in fish, may also be beneficial for retinal health.

6. Avoid Eye Strain: Limit exposure to screens and bright lights, especially if you notice that these exacerbate your symptoms.

In conclusion, while your symptoms are understandably concerning, they may not necessarily indicate a serious issue, especially since your left eye has been cleared of abnormalities. However, continued vigilance and communication with your healthcare provider are key to managing your eye health effectively. If you have further questions or if your symptoms change, do not hesitate to reach out to your ophthalmologist for guidance.

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