the Flickering Light Spots in Your Vision: Causes and Insights - Ophthalmology

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Flickering light spots in your vision can be concerning, especially when accompanied by other visual disturbances like floaters. Based on your description, it sounds like you are experiencing a phenomenon that may be related to your existing condition of floaters (myodesopsia) and possibly other visual effects such as entoptic phenomena.
The small flickering light spots you see, especially against a bright background like a blue sky or a well-lit room, could indeed be related to what is known as "Scheerer's phenomenon" or "blue field entoptic phenomenon." This occurs when you perceive the shadows of white blood cells moving through the capillaries in your retina. It is generally considered a benign condition and is often described as seeing tiny bright spots or flickering lights, particularly when looking at a bright, uniform background.

Your experience of seeing these flickering spots, even when not directly focusing on them, suggests that your visual system is quite sensitive to changes in light and contrast. This sensitivity can be heightened in individuals with myopia (nearsightedness) and floaters, as the structural changes in the eye can lead to increased visual disturbances.
The presence of visual "noise," as you described, particularly in dim lighting, can also be attributed to the way your retina processes light. In low-light conditions, the rod cells in your retina become more active, and any irregularities or changes in the vitreous gel (which can happen with floaters) may become more pronounced, leading to the perception of movement or flickering.

While these phenomena are often harmless, they can be distressing, especially if they are new or if they seem to be worsening. It's important to monitor your symptoms. If the flickering lights persist, increase in frequency, or are accompanied by other symptoms such as flashes of light, significant changes in vision, or a sudden increase in floaters, it would be prudent to seek further evaluation from an eye care professional.
In terms of treatment, there is generally no specific intervention required for benign entoptic phenomena. However, if you find that your symptoms are bothersome, discussing options with your eye doctor may provide some relief. They might suggest strategies for coping with the visual disturbances or, in some cases, refer you to a specialist if they suspect any underlying issues.

It's also worth noting that stress and fatigue can exacerbate visual disturbances. Ensuring that you take regular breaks from screens, manage your eye strain, and maintain overall eye health can be beneficial.
In conclusion, while the flickering light spots you are experiencing are likely benign and related to your existing floaters, keeping an open line of communication with your eye care provider is essential. They can help you navigate your symptoms and provide reassurance or further investigation if necessary. Remember, your eye health is crucial, and staying informed about your condition is the best way to manage it effectively.