Eye Symptoms: Seeing Blood Vessels During Blinking

Q: Eye Symptoms: Seeing Blood Vessels During Blinking

Hello Jun-Hsiang： If the fundus examination shows no issues, there is no need to worry; it is likely a phenomenon of floaters, and regular check-ups are sufficient. <br>Sometimes, there may be visual field defects in the laser-treated area, but if they are peripheral, they will n

In the moment of blinking, one can see blood vessels similar to those observed during a fundus examination?

I have high myopia, with both eyes having approximately 1000 diopters.
Over ten years ago, I experienced symptoms of retinal detachment in my right eye, which was treated with laser therapy.
My left eye also received laser treatment in a more precarious area, where the detached region was surrounded by laser, similar to a firewall.
I have been regularly monitoring the condition of my retina, and my doctor has stated that it remains quite stable with no significant changes.

However, during a fundus examination in February, I noticed that when I close and then open my eyes while riding my motorcycle, I see blood vessels in my vision, appearing as a fixed size slightly below the center of my visual field.
When looking at a computer screen, I also see the shapes of blood vessels (appearing black), but their size varies.
After returning to my doctor, I was told that this is not a significant symptom.
After measuring my intraocular pressure and examining my fundus again, everything was deemed normal, and I was given eye drops to improve my symptoms.
Since the symptoms are intermittent and sometimes more pronounced, I sought a second opinion at another ophthalmology clinic.
They also measured my intraocular pressure and performed a dilated fundus examination.
I informed the doctor about my symptoms, but they still considered it not significant and suggested regular follow-ups, advising me to return if I experience blurred vision or new floaters.
However, this did not address my concerns.
I have worn glasses since childhood, and I have had floaters for a long time, especially noticeable under bright sunlight when brown spots appear intermittently.
Therefore, I would like to ask if this symptom is a normal phenomenon.
This issue only occurs in my right eye, which is my primary eye for vision, while my left eye has poor vision.
Is it possible that I am more aware of this problem because my right eye is deteriorating? Thank you very much for taking the time to respond.

Junxiang, 40~49 year old female. Ask Date: 2016/03/07

Dr. Gao Pilin reply Ophthalmology

Hello Jun-Hsiang: If the fundus examination shows no issues, there is no need to worry; it is likely a phenomenon of floaters, and regular check-ups are sufficient.
Sometimes, there may be visual field defects in the laser-treated area, but if they are peripheral, they will not affect vision.
The ophthalmology department at Puzi Hospital in Taiwan is open Monday to Friday from 8:00 AM to 12:00 PM and Wednesday afternoons from 1:00 PM to 4:30 PM.
Online responses can only serve as a reference; it is still necessary to seek medical attention at a healthcare facility if needed.
I hope to have the opportunity to serve you.
Gao Pi-Lin

Reply Date: 2016/03/07

More Info

Seeing blood vessels or experiencing visual disturbances can be concerning, especially for someone with a history of retinal issues and high myopia. Based on your description, it seems that you are experiencing a phenomenon where you can see blood vessels in your vision, particularly when blinking or looking at screens. This can be attributed to several factors, and it's essential to understand the underlying causes and implications.

Possible Causes of Seeing Blood Vessels
1. Vitreous Floaters: Given your history of high myopia and retinal issues, it's possible that what you're seeing are floaters. These are tiny clumps of gel or cells inside the vitreous, the clear gel that fills the eye. When light passes through the eye, these floaters can cast shadows on the retina, which may appear as spots or lines in your vision. They can be more noticeable against bright backgrounds, such as when you're outside in sunlight or looking at a computer screen.

2. Retinal Changes: In individuals with high myopia, the retina can become stretched and thinner, making it more susceptible to changes. The presence of blood vessels in your vision could indicate that the retina is reacting to these changes, possibly due to the previous laser treatments you underwent for retinal detachment. While your doctors have indicated that your retina is stable, it's crucial to monitor any new symptoms closely.

3. Visual Fatigue: Prolonged screen time or focusing on near objects can lead to visual fatigue, which might exacerbate the perception of floaters or blood vessels. This is particularly relevant if you are experiencing these symptoms more frequently when using digital devices.

4. Ocular Health: Conditions such as dry eye syndrome can also contribute to visual disturbances. If your eyes are not adequately lubricated, it can lead to discomfort and visual anomalies, including the perception of blood vessels.

Recommendations
1. Regular Eye Exams: Continue with your regular eye examinations, especially given your history of retinal issues. It's essential to keep your eye care professionals informed about any new symptoms, including the appearance of blood vessels or changes in your vision.

2. Monitor Symptoms: Keep a log of when these symptoms occur, their duration, and any associated activities (like screen time or outdoor exposure). This information can be helpful for your eye care provider.

3. Visual Hygiene: Practice good visual hygiene by taking regular breaks from screens (the 20-20-20 rule: every 20 minutes, look at something 20 feet away for 20 seconds). Ensure that your workspace is well-lit and that you are using appropriate eyewear.

4. Hydration and Eye Drops: If you suspect dryness, consider using preservative-free artificial tears to keep your eyes lubricated. Staying hydrated can also help maintain overall eye health.

5. Seek a Second Opinion: If your symptoms persist or worsen, consider seeking a second opinion from a retinal specialist. They can provide a more in-depth evaluation of your retinal health and any potential underlying issues.

Conclusion
While seeing blood vessels or experiencing visual disturbances can be alarming, it is often related to benign conditions such as floaters or visual fatigue, especially in individuals with high myopia. However, given your medical history, it is crucial to remain vigilant and proactive about your eye health. Regular check-ups and open communication with your eye care provider are key to managing your symptoms and ensuring the long-term health of your eyes. If you notice any significant changes in your vision, such as sudden flashes of light, an increase in floaters, or any loss of vision, seek immediate medical attention.

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