Retinal Thinning: Causes, Symptoms, and Concerns for Myopia

Q: Retinal Thinning: Causes, Symptoms, and Concerns for Myopia

Hello： There is no need to worry too much. <br>Limit the use of electronic devices and have regular check-ups. <br>Wishing you peace and good health. <br>Sincerely, Dr. <br>Tsai Wen-Yuan, Director of the Ophthalmology Department, Taoyuan General Hospital, Ministry of Health and W

I would like to inquire about the condition of retinal thinning?

Hello, Dr.
Tsai! I have high myopia, with my left eye at -600 and my right eye at over -900.
Last week, I underwent a dilated eye examination at a nearby hospital, where they diagnosed me with retinal thinning.
However, I didn't ask all my questions at the time, and I've thought of some afterward, so I would like to ask you, Dr.
Tsai:
1.
I only notice slight flashes of light in the corners or center of my vision when I turn my head in completely dark environments.
Is this because the movement of my head is affecting the retina? Does this mean that any physical activity, like running, could also impact it? I don't have a clear understanding of the retina, which is why I'm asking this question.
2.
Will this phenomenon of seeing flashes when turning my head never improve and only worsen as my retina continues to thin? Or does it occur more frequently when my eyes are fatigued after prolonged use? I often feel eye strain and a slight swelling sensation in my eyeballs after work.
3.
If retinal thinning is a degenerative result of high myopia, will my continued use of electronic devices worsen the condition? There are frequent discussions about the harmful effects of blue light emitted from these devices, and does prolonged close-up use of my eyes contribute to this? I am not very familiar with this condition and feel a bit anxious, so I have many questions.
I hope you can provide some answers.
Thank you!

Mr. Zhang, 20~29 year old female. Ask Date: 2017/10/18

Dr. Cai Wenyuan reply Ophthalmology

Hello: There is no need to worry too much.
Limit the use of electronic devices and have regular check-ups.
Wishing you peace and good health.
Sincerely, Dr.
Tsai Wen-Yuan, Director of the Ophthalmology Department, Taoyuan General Hospital, Ministry of Health and Welfare.

Reply Date: 2017/10/18

More Info

Dear Patient,
Thank you for reaching out with your concerns regarding retinal thinning and its implications for your high myopia. It’s understandable to have questions, especially when it comes to eye health, and I’m here to provide clarity on the matter.

1. Flashes of Light and Head Movement: The flashes of light you experience when turning your head in dark environments can indeed be related to the retina. This phenomenon, known as photopsia, can occur when the retina is stimulated, often due to movement or traction. In individuals with high myopia, the retina can become thinner and more susceptible to these sensations. While normal head movements during activities like running may not directly harm the retina, it’s essential to be cautious. If you experience persistent flashes or an increase in their frequency, it would be prudent to consult your eye care professional for further evaluation.

2. Progression of Symptoms: The occurrence of flashes may not necessarily worsen with time, but it can be indicative of underlying retinal changes. Factors such as eye fatigue from prolonged screen time can exacerbate these symptoms. If you find that the flashes are more pronounced after long hours of work or screen use, it could be a sign of eye strain. It’s crucial to take regular breaks, practice the 20-20-20 rule (every 20 minutes, look at something 20 feet away for 20 seconds), and ensure proper lighting while working to alleviate eye fatigue.

3. Impact of Digital Devices and Blue Light: Your concern about the impact of prolonged use of digital devices on retinal health is valid. While there is ongoing research regarding blue light exposure and its effects on the eyes, current evidence suggests that blue light from screens does not cause retinal damage in the same way that UV light does. However, excessive screen time can lead to digital eye strain, characterized by symptoms such as dryness, fatigue, and discomfort. To mitigate these effects, consider using blue light filters on your devices, adjusting screen brightness, and maintaining a proper distance from the screen.

In terms of managing your myopia and retinal thinning, regular eye examinations are crucial. Your eye care provider can monitor the condition of your retina and recommend appropriate interventions if necessary. Additionally, lifestyle modifications such as reducing screen time, ensuring proper lighting, and taking breaks can help manage symptoms and maintain overall eye health.

Lastly, it’s essential to maintain open communication with your eye care professional. If you notice any changes in your vision, such as an increase in flashes, floaters, or any other unusual symptoms, do not hesitate to seek immediate medical attention. Early detection and intervention are key in managing conditions related to high myopia and retinal health.

I hope this information helps alleviate some of your concerns. Please take care of your eyes, and don’t hesitate to reach out if you have further questions.

Best regards,
Dr. Cai

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