Eye Problem Consultation
Dear Dr.
Gao,
I have two questions to ask:
1.
Occasionally, after sneezing, I experience a flickering sensation in my vision (seeing stars).
However, on two occasions, after sneezing, I experienced a complete whiteout that obscured my vision, which returned to normal after a while.
Is it normal to see a white light (not flashes) after sneezing, or could it indicate an eye condition?
2.
If a retinal tear or detachment occurs, based on your experience, what specific symptoms or phenomena should one expect to help with diagnosis?
Thank you, Dr.
Gao.
Axiang, 30~39 year old female. Ask Date: 2020/04/06
Dr. Gao Pilin reply Ophthalmology
Hello, Ah-Hsiang:
1.
Pressure on the retinal optic nerve is the main cause of seeing "stars." Many physiological activities, including forceful coughing, sneezing, straining during bowel movements, and holding one's breath, can lead to increased intracranial pressure.
This pressure can then transmit to the eyes, compressing the retina and optic nerve, which in turn sends nerve impulses to the brain's visual center.
At this moment, the eyes may perceive "little stars," which is considered a normal physiological phenomenon.
2.
Seeing a large shadow or experiencing distorted images, decreased vision, or changes in color perception can be concerning.
If you notice floating black spots, shadows, cobweb-like strands, or flashes of light, these may also be warning signs of retinal detachment.
For eye care, you can visit the ophthalmology department at Puzi Hospital in Taiwan: Monday, Tuesday, Thursday, and Friday from 8:00 AM to 12:00 PM, and Wednesday from 2:00 PM to 4:30 PM.
Please note that online responses are for reference only; it is essential to seek medical attention at a healthcare facility if necessary.
I hope to have the opportunity to serve you.
Best regards,
Gao Pi-Lin
Reply Date: 2020/04/06
More Info
Hello! Thank you for your questions regarding the eye symptoms you are experiencing. Let's break down your concerns into two parts for clarity.
1. Sneezing and Visual Disturbances
Experiencing flashes of light or a white-out effect in your vision after sneezing can be concerning. The phenomenon of seeing "stars" or flashes of light (often referred to as photopsia) is relatively common and can occur due to various reasons. When you sneeze, the sudden increase in pressure in your head can momentarily affect the vitreous gel in your eye, which can lead to these visual disturbances.
However, the occurrence of a complete white-out effect, where your vision is obscured for a period, is less common and should be taken seriously. This could indicate a more significant issue, such as a temporary disruption in blood flow to the retina or even a potential retinal issue. While it may resolve on its own, it is crucial to consult with an eye care professional for a thorough examination, especially if this happens repeatedly or is accompanied by other symptoms like floaters or a curtain-like shadow over your vision.
2. Symptoms of Retinal Issues
If there is a retinal tear or detachment, there are specific symptoms that can help identify these conditions. Common signs include:
- Sudden onset of floaters: These are small specks or cobweb-like shapes that drift in your field of vision.
- Flashes of light: Similar to what you described, but these may occur more frequently and persistently.
- A shadow or curtain effect: This can feel like a dark veil covering part of your vision, which is a critical sign of retinal detachment.
- Sudden changes in vision: This could include blurriness or a significant decrease in vision.
If you experience any of these symptoms, it is essential to seek immediate medical attention. Retinal detachment is a medical emergency that can lead to permanent vision loss if not treated promptly.
Conclusion
In summary, while some visual disturbances after sneezing can be benign, the occurrence of a complete white-out effect warrants further investigation. Retinal issues can present with specific symptoms that should not be ignored. Always prioritize your eye health by consulting with an eye care professional if you have any concerns. Regular eye exams are also crucial, especially if you have a history of eye problems or if you notice any changes in your vision.
Thank you for your questions, and I hope this information helps clarify your concerns!
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