Post-Laser Treatment: Why Am I Seeing Black Spots?

After laser treatment, numerous black spots appeared?

Dear Doctor,
On the 13th of this month, I suddenly noticed a significant increase in floaters in my left eye.
On the 16th, I underwent a dilated eye exam at a local ophthalmology clinic, where the doctor mentioned that there is a retinal tear and expressed concern about potential fluid ingress leading to a detachment.
I was referred to a hospital for laser treatment to stabilize the retina, which I completed that afternoon.

The following day, on the 17th, I noticed a cluster of black spots in the central visual field of my left eye that were not present before, especially in bright sunlight.
Over the next few days, the number of these black spots increased and spread, making it seem like I was looking through a clear glass filled with impurities.
The spots became clearer with more light, and some appeared solid while others resembled small bubbles.
In addition to the sudden increase in black spots, I also observed various hair-like lines and clumps.

On the 22nd, I returned to the hospital for another dilated exam, and the doctor indicated that everything looked fine, attributing my symptoms to high myopia and vitreous degeneration, as I have -8.00 diopters of myopia in my left eye.

I would like to ask if the laser treatment could have caused the extensive appearance of black spots.
Initially, they were concentrated in the central visual field but have now expanded to the entire visual field, with varying distances of distribution.
Currently, my left eye floaters include numerous hair-like lines (especially on the left side) and a large number of black spots that appeared after the laser treatment.
Sometimes, I also notice what seems like an arc or wave at the edge of my left eye, and my vision appears darker and more blurred than before.

Should I seek a second opinion for further examination? How can I prevent the worsening of the floaters? I am very concerned about the potential for continued deterioration, as my vision is already quite disturbed.
Thank you.
By the way, I am worried that these symptoms might be due to diabetic eye disease, but I have been screened and do not have diabetes.

Feiwen zheng huanzhe, 40~49 year old female. Ask Date: 2016/08/27

Dr. Cai Wenyuan reply Ophthalmology

The increase in floaters is not necessarily related to laser treatment.
However, if the floaters continue to increase, it is advisable to have regular medical check-ups.

Reply Date: 2016/08/27

More Info

After undergoing laser treatment for retinal issues, experiencing an increase in floaters or black spots can be concerning. It’s important to understand the potential causes and implications of these symptoms, especially in the context of your recent laser surgery.

1. Understanding Floaters and Black Spots: Floaters are typically caused by changes in the vitreous humor, the gel-like substance that fills the eye. In individuals with high myopia (like yourself, with 800 degrees of nearsightedness), the vitreous can undergo liquefaction and detachment, leading to an increase in floaters. The laser treatment you received was likely aimed at addressing a retinal tear or thinning, which can also contribute to changes in the vitreous.

2. Post-Laser Treatment Effects: Laser treatment can sometimes lead to temporary changes in vision, including the appearance of new floaters or black spots. This can occur due to the thermal effects of the laser on the surrounding tissues, which may cause the vitreous to become more liquefied or to pull away from the retina. The fact that you are seeing these black spots more prominently in bright light is consistent with the behavior of floaters, which can be more noticeable against a bright background.

3. Vitreous Detachment: In your case, the sudden increase in floaters following the laser treatment could indicate a vitreous detachment, which is common in individuals with high myopia. This condition can lead to the perception of numerous floaters, including strands or clumps that resemble hair or bubbles, as you described. While this can be alarming, it is often a benign process. However, it is crucial to monitor for any changes in vision, such as flashes of light or a sudden increase in floaters, which could indicate a more serious issue.

4. Consultation with an Eye Specialist: Given your symptoms and the recent laser treatment, it would be prudent to follow up with an ophthalmologist or a retina specialist. They can perform a comprehensive examination to rule out any complications, such as retinal tears or detachment, which can occur in high myopia patients. It’s essential to ensure that your retina remains stable after the laser treatment.

5. Managing and Preventing Further Issues: While there is no guaranteed way to prevent floaters, maintaining regular eye check-ups is crucial, especially after significant changes like laser surgery. Protecting your eyes from excessive strain, ensuring proper lighting when reading or using screens, and taking breaks during prolonged visual tasks can help reduce discomfort and fatigue.

6. Concerns About Diabetes: Since you mentioned concerns about diabetic eye disease, it’s good that you have been screened and found to be free of diabetes. However, if you have a family history of diabetes or other risk factors, regular monitoring of your eye health remains important.

In summary, while the appearance of new floaters and black spots after laser treatment can be alarming, it is often a result of normal changes in the vitreous, especially in high myopia patients. However, it is essential to have a thorough examination by an eye care professional to ensure that there are no underlying complications. Regular follow-ups and eye care practices can help manage your symptoms and maintain your vision health.

Similar Q&A

Understanding Post-Laser Treatment: Why Is My Retina All Black?

Hello Dr. Gao, Last time I followed your advice and went to the Veterans General Hospital, where they informed me that I needed to have photos taken after the retinal laser treatment. The doctor took the photos, and I saw them, but I was so surprised at the time that I forgot t...

Dr. Gao Pilin reply Ophthalmology
Hello, Fei: It is normal to have dark circles after the laser procedure; this helps to tightly adhere your retina. Please rest assured. Taiwan E-Hospital Puzi Hospital Ophthalmology: Monday to Friday from 8:00 AM to 12:00 PM and Wednesday afternoon from 1:00 PM to 4:30 PM. We hop...

Understanding Post-Laser Surgery Symptoms: Black Spots in Vision

I had laser surgery for a small retinal tear in my right eye on Monday. On Wednesday, I experienced discomfort in my left eye and visited an ophthalmologist. During the procedures for both eyes, I underwent machine-assisted eye washing and maintained a distance from the machine w...

Dr. Gao Pilin reply Ophthalmology
Hello: If you experience shadows after retinal laser treatment, it may be due to the area treated by the laser. The laser generates heat and light energy, which can cause thermal damage to the retinal tissue, leading to the appearance of dark spots or shadows in your visual field...

Understanding Post-Laser Surgery Symptoms: What to Expect After Retinal Treatment

Recently, I have experienced an increase in symptoms of floaters, so I underwent a retinal examination. It was found that there is a small black spot at the edge of the retina, and the doctor mentioned that it is related to the vitreous body. He recommended laser treatment to pre...

Dr. Gao Pilin reply Ophthalmology
Hello Jack: Most of the black spots are referred to as floaters. If you have undergone laser treatment, you can feel more at ease and just continue to monitor the situation. The ophthalmology department at Puzi Hospital in Taiwan is open Monday to Friday from 8:00 AM to 12:00 PM ...

Persistent Black Spots After Laser Treatment for Retinal Tear: What to Do?

A few days ago, I noticed a small black spot in my vision. Yesterday, I underwent laser treatment at Chang Gung Memorial Hospital, but today I still see the black spot. Is this a normal phenomenon, or should I visit the clinic again?

Dr. He Jianxian reply Ophthalmology
Black spots are generally caused by floaters, and laser treatment cannot make floaters disappear; therefore, black spots typically do not go away. This is for your reference.