Eye Symptoms: Questions About Retinal and Vitreous Issues

Q: Eye Symptoms: Questions About Retinal and Vitreous Issues

Hello, Ah-Hsiang： 1-1 Most of the time, it's like this, but it's hard to be certain. Especially if there is sound, usually there isn't. 1-2 It might be due to the specific angle causing the tension. 2. It's difficult to determine; it may be more relate

Eye Consultation Inquiry

Dear Dr.
Gao,
I have a few questions as follows:
1.
In a situation where the head is not turning, when I look to the right with my eyes to the limit, I hear a "pop" sound similar to an electrical short circuit and see a flash of white light.
The "pop" sound and the white light occur simultaneously, but there is no such phenomenon when I look to the left.
Dr.
Gao, in your opinion: (1) Is this phenomenon caused by the vitreous pulling on the retina, or is it due to other factors? (2) Why does this phenomenon only occur when looking to the right and not when looking to the left?
2.
Additionally, I have recently noticed that this phenomenon occurs more frequently when I get up during the night after sleeping, while it happens less often during normal daytime activities.
Dr.
Gao, do you think this phenomenon is related to "intraocular pressure"? My personal thought is that when I get up during the night, the change in posture may cause an increase in "intraocular pressure," leading to the aforementioned phenomenon.
Or could it be due to other factors?
3.
Dr.
Gao, at what age does "posterior vitreous detachment" typically occur? Also, how long does it generally take for the vitreous and retina to completely detach from each other?
Thank you, Dr.
Gao.

Axiang, 30~39 year old female. Ask Date: 2021/11/01

Dr. Gao Pilin reply Ophthalmology

Hello, Ah-Hsiang:
1-1 Most of the time, it's like this, but it's hard to be certain.
Especially if there is sound, usually there isn't.

1-2 It might be due to the specific angle causing the tension.

2.
It's difficult to determine; it may be more related to changes in posture and gravity.

3.
It mostly occurs after middle age, but there are also cases of early onset.
The duration of complete detachment can vary as well.

Reply Date: 2021/11/01

More Info

Dear Patient,
Thank you for reaching out with your questions regarding your eye symptoms. It’s important to understand the complexities of eye health, especially when experiencing unusual sensations or visual disturbances. Let’s address your concerns one by one.

1. The "Pop" Sound and Flash of Light: The phenomenon you described—hearing a "pop" sound and seeing a flash of light when you look to the right—could indeed be related to vitreous traction on the retina. This is often referred to as a posterior vitreous detachment (PVD), where the vitreous gel pulls away from the retina. The sound you hear may be related to the movement of the vitreous or the retina itself. The fact that this occurs only when looking to the right could be due to the specific positioning of the vitreous gel in your eye, which may be exerting more traction in that direction. It’s not uncommon for these symptoms to be unilateral, as anatomical differences between the two eyes can lead to varying experiences.

2. Occurrence During Nighttime Movements: The increased frequency of this phenomenon when you get up at night could be related to changes in intraocular pressure (IOP) or the position of your head and body. When you change positions, especially from lying down to standing, the dynamics of fluid in your eyes can change, potentially leading to transient increases in IOP. However, it’s also possible that the darkness and sudden movements heighten your awareness of these sensations. While there is a relationship between IOP and various eye conditions, the specific "pop" and flash you experience may not be directly caused by IOP changes but rather by the mechanics of the vitreous and retina.

3. Age and Vitreous Detachment: Posterior vitreous detachment typically occurs in individuals over the age of 50, but it can happen earlier, especially in those with myopia (nearsightedness) or other risk factors. The process of vitreous detachment can vary significantly from person to person. Once the vitreous begins to detach, it can take days to weeks for the process to complete. During this time, individuals may experience flashes of light or floaters as the vitreous gel moves away from the retina.

In summary, your symptoms warrant careful observation. If you experience any sudden changes in vision, such as a significant increase in floaters, a curtain-like shadow over your vision, or a sudden loss of vision, it is crucial to seek immediate medical attention. Regular eye examinations are essential, especially as you age or if you have risk factors for retinal issues.

If you have further questions or if your symptoms persist, please consult with an eye care professional who can provide a thorough examination and tailored advice based on your specific situation. Your eye health is paramount, and staying informed is the best way to ensure it.

Best regards,
Doctor Q&A Teams

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