Visual Disturbances After Retinal Laser Treatment

Q: Visual Disturbances After Retinal Laser Treatment

Hello： <br>1. <br>The effect of Weiss rings on light： Weiss rings are a common phenomenon during vitreous detachment. <br>These dark shadows or ring-like structures typically do not directly affect the amount of light entering the eye, but they may cause visual disturbances, espe

After retinal tear laser treatment, the patient may experience Weiss ring and decreased light perception?

Dear Dr.
Gao,
I had laser treatment for a retinal tear in my left eye last month, and the next day I experienced a Weiss ring along with numerous small black floaters.
This month, I discovered a new tear, and the doctor performed additional treatment and reinforced the thin areas.
I have a few questions:
1.
Will the Weiss ring affect the amount of light entering my eye? I feel that the images I see are somewhat darker than before.
2.
The numerous small black dots have gradually decreased over the past few weeks; there are still some visible, but not many.
Are these small dots truly disappearing, or are they still present in the vitreous but just not visible to me, potentially affecting the amount of light entering?
3.
The Weiss ring is still in the center of my left eye, and there are some thread-like strands connected to it.
Could my recent difficulty focusing with my left eye be related to the Weiss ring? I often feel that my left eye's focusing ability is poor, and combined with the dimming of light, it makes seeing quite strenuous.
4.
Can autonomic nervous system dysregulation lead to a decrease in light entering the eye? The floaters have caused me significant anxiety this past month, affecting my sleep, and I have pain in my left temple and discomfort in my left eye socket.
Thank you for your response, Dr.
Gao.

Mr. Lai, 50~59 year old female. Ask Date: 2024/07/18

Dr. Gao Pilin reply Ophthalmology

Hello:
1.
The effect of Weiss rings on light: Weiss rings are a common phenomenon during vitreous detachment.
These dark shadows or ring-like structures typically do not directly affect the amount of light entering the eye, but they may cause visual disturbances, especially against a bright background, where one might perceive a darker field of vision.
If the darkening of the image is severe, other causes should be considered, such as retinal conditions or increased vitreous opacity.
2.
Reduction of floaters: The decrease in the small black dots associated with floaters occurs because these substances gradually move to the periphery of the visual field over time or are adapted to and ignored by the brain.
Although they may be visually reduced, they may still exist within the vitreous and do not affect the amount of light entering the eye.
3.
The relationship between defocus and Weiss rings: Weiss rings and vitreous opacities may affect visual clarity primarily because they obstruct light in the line of sight.
If you feel that your focusing ability is poor, it may be related to vitreous issues.
It is advisable to discuss with your physician whether further examination or treatment is necessary.
4.
Autonomic nervous system dysregulation and reduced light: Autonomic nervous system dysregulation typically does not directly lead to a decrease in the amount of light entering the eyes, but anxiety, fatigue, and lack of sleep can exacerbate discomfort in the eyes and even affect visual clarity and sensitivity to light.
It is recommended to try to relax, improve sleep quality, and consider discussing with a psychiatrist whether further treatment for autonomic nervous system regulation is needed.
Wishing you a speedy recovery!

Reply Date: 2024/07/18

More Info

Hello! Thank you for your detailed inquiry regarding your visual disturbances following retinal laser treatment. Let's address your questions one by one, while also providing some additional context about the conditions you are experiencing.

1. Impact of Weiss Ring on Light Entry: The Weiss ring is a phenomenon associated with the vitreous detachment from the retina, which can create a ring-like shadow in your vision. While it does not physically obstruct light from entering the eye, it can affect how you perceive light and contrast. If you feel that your vision appears darker, it could be due to the presence of the Weiss ring, as it can interfere with your visual clarity and contrast sensitivity. This is particularly relevant if you have experienced changes in your retinal structure or function after the laser treatment.

2. Persistence of Floaters: The small black dots you are seeing, often referred to as floaters, are typically remnants of the vitreous gel that has become more liquid and may contain clumps of collagen. While many floaters can become less noticeable over time as your brain learns to ignore them, they may not completely disappear. It is possible that some floaters remain in the vitreous cavity and can still affect your perception of light, especially in bright conditions. However, if they are diminishing in visibility, this is generally a positive sign.

3. Focus Issues Related to Weiss Ring: The difficulty you are experiencing with focusing in your left eye could indeed be related to the presence of the Weiss ring. The ring can create visual disturbances that may lead to a sensation of blurred vision or difficulty focusing. Additionally, if there are any changes in the vitreous or retinal structure due to the laser treatment, this could further complicate your ability to focus. If you are experiencing persistent focus issues, it is essential to discuss this with your ophthalmologist, as they may want to conduct further evaluations to rule out any other underlying issues.

4. Autonomic Nervous System and Light Perception: Autonomic nervous system dysregulation can indeed influence various bodily functions, including those related to vision. Stress and anxiety can lead to physical symptoms such as headaches and eye strain, which may exacerbate your perception of visual disturbances. The discomfort you are feeling in your temple and eye socket could be tension-related, stemming from the stress of dealing with your visual symptoms. It is crucial to manage stress and anxiety, as they can impact your overall well-being and potentially your visual perception.

In summary, it is essential to maintain regular follow-ups with your ophthalmologist to monitor your condition closely. They can provide tailored advice and treatment options based on your specific situation. Additionally, practicing stress management techniques, such as mindfulness or relaxation exercises, may help alleviate some of the anxiety and physical discomfort you are experiencing. If your symptoms persist or worsen, do not hesitate to seek immediate medical attention. Your vision is vital, and addressing these concerns promptly is crucial for your overall eye health. Thank you for reaching out, and I wish you the best in your recovery!

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