Sudden Vision Loss: Is It Retinal Detachment?

Eye problems

Hello, doctor.
Recently, I've been experiencing a sudden blackout of my vision for about a second when looking at my phone, and then it returns to normal.
It feels like I'm dozing off, as if my eyes are closing and then opening again, but they are not actually closing.
Could this be a sign of retinal detachment or some other pathology?

Niming, 10~19 year old female. Ask Date: 2015/08/25

Dr. He Jianxian reply Ophthalmology

If you suddenly experience complete darkness in your vision that lasts for a few seconds and then returns, you should be cautious, as this may be caused by a blockage in blood flow.
It is important to suspect the presence of small blood clots in your vascular system.
If this phenomenon occurs repeatedly, it is advisable to not only consult an ophthalmologist to examine your retina but also to see a cardiologist to check for any cardiovascular issues that may be causing the formation of small clots or thrombosis.

Reply Date: 2015/08/25

More Info

Sudden vision loss or transient visual disturbances can be concerning, and it's essential to understand the potential causes and implications. Based on your description of experiencing a momentary blackout of vision while looking at your phone, it is crucial to consider several factors that could contribute to this phenomenon.

Firstly, the symptoms you describe—where your vision temporarily goes black and then returns—could be related to a few different conditions. One possibility is a transient visual obscuration, which can occur due to various reasons, including changes in blood flow to the retina or optic nerve. This can happen when you change positions quickly, such as standing up after sitting for a long time, or even due to prolonged screen time, which can lead to eye strain and fatigue.

Retinal detachment is a serious condition that can lead to permanent vision loss if not treated promptly. However, the symptoms of retinal detachment typically include the sudden appearance of floaters, flashes of light, or a shadow or curtain over part of your vision. If your vision loss is brief and resolves quickly, it may not be indicative of retinal detachment. Nevertheless, it is essential to be cautious, as early detection of retinal issues can significantly affect outcomes.

Another potential cause of your symptoms could be related to the phenomenon known as "visual snow," which involves seeing static-like visual disturbances, particularly in low-light conditions. This condition can be exacerbated by screen time and may cause you to perceive your visual field differently, especially when transitioning between different lighting conditions.

Additionally, if you are experiencing fatigue or strain from prolonged use of digital devices, this could lead to symptoms such as blurred vision or temporary visual disturbances. Computer Vision Syndrome (CVS) is a common issue among individuals who spend extended periods in front of screens, leading to discomfort and visual disturbances.

Given your concerns about retinal detachment or other serious conditions, it is advisable to seek a comprehensive eye examination from an ophthalmologist. They can perform specific tests, including a dilated fundus examination, to assess the health of your retina and optic nerve. If there are any signs of retinal detachment or other abnormalities, early intervention can be crucial.

In summary, while your symptoms may not immediately suggest retinal detachment, it is essential to take them seriously. Regular eye exams and monitoring your symptoms are vital, especially if you notice any changes in your vision. If you experience any sudden changes, such as an increase in floaters, flashes of light, or a curtain-like shadow over your vision, seek medical attention immediately. Taking care of your eye health through proper ergonomics, regular breaks from screens, and maintaining a healthy lifestyle can also help mitigate some of these symptoms.

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