Eye Floaters and Flashing Lights: When to Seek Help - Ophthalmology

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Seeing light spots in the sky during the day and experiencing flashes when blinking at night?


Hello, Doctor.
I have myopia over 700 degrees and dry eye syndrome.
Recently, I noticed many small light spots moving around when looking at the sky, as well as some transparent floating objects resembling paramecia under a microscope, so I went to the hospital for an examination (in Japan).
They performed dilation, and the doctor used a magnifying glass and a flashlight, as well as a machine to check the details.
After a long examination, they said that the retina and other areas were fine, and that the light spots I see are likely due to impurities in the vitreous body.

Is this considered floaters? Additionally, last night after turning off the lights, I suddenly saw flashes of light near my feet when I blinked, with the brightness varying based on the intensity of my blinking.
After my eyes adjusted to the darkness, there were no more flashes when I blinked.
What could this issue be? I have researched a lot and am a bit worried that it might be retinal detachment.
Should I go to another hospital for further evaluation, or should I continue to observe and only seek further examination if there are changes? Thank you for your response!

vivian, 20~29 year old female. Ask Date: 2018/04/24

Dr. Cai Wenyuan reply Ophthalmology


Hello, the retina is fine; regular check-ups are sufficient, and there is no need for excessive concern.
Wishing you peace and health.
Sincerely, Dr.
Tsai Wen-Yuan, Director of the Department of Ophthalmology, Taoyuan General Hospital, Ministry of Health and Welfare.

Reply Date: 2018/04/24

More Info


Your concerns regarding the visual phenomena you are experiencing, particularly the presence of floaters and flashes of light, are quite valid, especially given your history of high myopia (over -700 diopters) and dry eye syndrome. Let's delve into the details of your situation and clarify some important points regarding floaters, flashes, and when to seek further medical attention.


Understanding Floaters and Flashes
1. Floaters: What you described as "small light points" and "transparent floating objects" are commonly referred to as floaters. These are typically caused by changes in the vitreous humor, the gel-like substance that fills the eye. As we age or due to conditions like high myopia, the vitreous can become more liquid and may pull away from the retina, leading to the perception of floaters. They can appear as spots, threads, or cobweb-like structures in your field of vision.

2. Flashes: The flashes of light you mentioned, especially those that resemble camera flashes, can occur when the vitreous pulls on the retina. This is known as "photopsia." While flashes can be benign, they can also indicate more serious conditions, such as retinal tears or detachments, particularly in individuals with high myopia.


When to Seek Help
Given your symptoms and the fact that you have already undergone a thorough examination with no retinal issues detected, it is reassuring. However, there are specific situations where you should seek immediate medical attention:
- Increased Frequency or Intensity: If you notice an increase in the number of floaters or flashes, or if they become more intense, it is essential to consult an eye care professional promptly.


- Changes in Vision: If you experience any sudden changes in your vision, such as a curtain-like shadow over your field of vision, significant blurriness, or loss of peripheral vision, these could be signs of a retinal detachment and require immediate evaluation.

- Persistent Symptoms: If the flashes or floaters persist or worsen over time, it is advisable to return to an eye specialist for further evaluation, even if your previous examinations were normal.


Recommendations
1. Regular Eye Exams: Given your high myopia, it is crucial to have regular eye examinations to monitor the health of your retina and overall eye condition. This is especially important as you age or if you notice any new symptoms.

2. Avoid Eye Strain: Since you also have dry eye syndrome, ensure that you manage this condition effectively. Use lubricating eye drops as recommended, take regular breaks when using screens, and maintain a comfortable environment to reduce eye strain.

3. Monitor Symptoms: Keep a log of any new symptoms, including the frequency and intensity of floaters and flashes, and any changes in your vision. This information can be helpful for your eye care provider during your next visit.

4. Seek a Second Opinion: If you remain concerned about your symptoms or if they change, seeking a second opinion from another eye care professional can provide additional reassurance and clarity.

In conclusion, while floaters and flashes can be common, especially in individuals with high myopia, it is essential to remain vigilant about any changes in your symptoms. Regular check-ups and being proactive about your eye health will help ensure that any potential issues are addressed promptly. If you have further concerns or experience any alarming symptoms, do not hesitate to seek immediate medical attention.

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