Lightning Symptoms in Eyes: Glaucoma and Retinal Concerns

Q: Lightning Symptoms in Eyes: Glaucoma and Retinal Concerns

Hello： 1. <br>Your astigmatism seems to take about ten minutes to resolve, which is not typical of a retinal issue; flashes caused by retinal traction are usually momentary. <br>I'm not quite sure what your symptoms are. <br>2. <br>Glaucoma has a hereditary tendency, but it is di

The occurrence of lightning-like symptoms in the eyes is related to issues concerning glaucoma?

Hello, doctor.
I would like to ask you a few questions.

(1) While riding my bike to work and walking up the stairs to my office, I noticed a phenomenon where there were bright, lightning-like streaks in my vision, similar to the visual afterimages one sees after staring at a light for too long.
When I close my eyes, it doesn't glow but has a contour.
When I open my eyes, it appears again in the same spot, and it disappears after about ten minutes.
I have previously discovered a retinal tear during my university years, but I didn't have significant symptoms.
After undergoing laser treatment, everything has been fine except for some floaters.
I am now concerned about this situation.
Could this indicate a problem with my retina again?
(2) My father has a history of glaucoma, so I am worried about my own risk.
Last year, I had an examination at a military hospital in the north, where I was diagnosed with ocular hypertension, but my visual field was normal.
Do you know if there are any self-testing methods for glaucoma?
(3) Additionally, I read an article suggesting that lightly pressing on the eyeball can be used as a method to estimate intraocular pressure.
Is this method reliable?
Thank you very much for your answers.

LAN LAN, 20~29 year old female. Ask Date: 2022/08/15

Dr. He Jianxian reply Ophthalmology

Hello: 1.
Your astigmatism seems to take about ten minutes to resolve, which is not typical of a retinal issue; flashes caused by retinal traction are usually momentary.
I'm not quite sure what your symptoms are.
2.
Glaucoma has a hereditary tendency, but it is difficult to detect through self-assessment.
3.
The method of lightly pressing on the eyeball to compare intraocular pressure is completely unreliable and incorrect.
Director He Jianxian, Ophthalmology Department, Nantou Hospital.

Reply Date: 2022/08/15

More Info

It sounds like you are experiencing some concerning visual symptoms, and I appreciate your detailed description of your situation. Let's break down your questions and concerns regarding the symptoms you are experiencing, particularly in relation to potential retinal issues and glaucoma.

1. Visual Symptoms and Retinal Concerns: The phenomenon you describe, where you see lightning-like flashes or lines in your vision, can indeed be associated with retinal issues. Given your history of retinal tears and the presence of floaters (which you mentioned as "flying mosquitoes"), it's important to be vigilant. Flashes of light can occur when the vitreous gel in the eye pulls on the retina, which can happen due to vitreous detachment or other retinal conditions. While you have had laser treatment in the past and have not experienced significant symptoms since, any new visual disturbances warrant a thorough examination by an ophthalmologist. They may perform a dilated eye exam or imaging tests to assess the health of your retina and rule out any new issues.

2. Concerns About Glaucoma: Since you have a family history of glaucoma, it is understandable that you are concerned about your own eye health. You mentioned that you were diagnosed with high intraocular pressure (IOP) but had normal visual fields. This is a positive sign, as it indicates that your optic nerve is likely still healthy. However, regular monitoring is essential, especially given your family history. Unfortunately, there is no reliable self-test for glaucoma at home. The best way to monitor your eye pressure and overall eye health is through regular visits to an eye care professional who can perform comprehensive eye exams, including tonometry (to measure eye pressure) and visual field tests.

3. Self-Testing Eye Pressure: Regarding the method of lightly pressing on the eyeball to gauge eye pressure, this is not a reliable or recommended technique. Eye pressure is best measured with specialized equipment in a clinical setting. The pressure can vary based on numerous factors, including time of day, body position, and even stress levels. Therefore, self-testing is not accurate and could lead to unnecessary anxiety or false reassurance.

In summary, your symptoms of flashes of light and visual disturbances, especially with your history of retinal issues, should be evaluated by an eye care professional as soon as possible. They can provide a comprehensive assessment and determine if any further action is needed. Regular monitoring of your eye health, particularly given your family history of glaucoma, is crucial. It’s essential to maintain open communication with your eye doctor about any changes in your vision or new symptoms you experience.
In the meantime, try to avoid straining your eyes with prolonged screen time and ensure you take regular breaks to reduce eye fatigue. If you experience any sudden changes in vision, such as a sudden increase in flashes or floaters, or if you notice a shadow or curtain effect in your vision, seek immediate medical attention. Your eye health is paramount, and being proactive is the best approach.

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