Orange Lines in Vision: Causes and Concerns - Ophthalmology

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The phenomenon you experienced, where you saw an orange line in your vision after lying down in a dark room, can be attributed to a few potential causes, primarily related to the way our visual system processes light and images. Given your history of high myopia and floaters, it's important to consider these factors in understanding your experience.

Firstly, the appearance of the orange line could be a result of a visual afterimage, also known as "persistence of vision." This occurs when the photoreceptors in your retina (the light-sensitive cells) continue to send signals to your brain even after the stimulus (in this case, the bright ceiling) has been removed. When you looked at the ceiling, especially if it was illuminated or had some light reflecting off it, your eyes were exposed to a bright light source. Once you closed your eyes or turned off the lights, the receptors may have retained the image for a short period, resulting in the perception of an orange line. This is typically a benign and temporary phenomenon.

Additionally, your high myopia and the presence of floaters can contribute to unusual visual experiences. Floaters are tiny clumps of gel or cells inside the vitreous humor of the eye, which can cast shadows on the retina, leading to the perception of lines or shapes in your field of vision. When you lie down, the position of the vitreous gel can change, potentially causing floaters to shift and create transient visual disturbances.

It's also worth noting that the color of the line you observed could be influenced by the lighting conditions and the way your brain interprets visual information in low-light scenarios. The brain often tries to fill in gaps or make sense of incomplete visual data, which can lead to the perception of colors or shapes that aren't actually present.

In terms of medical concerns, while the experience you described is likely benign, it is essential to monitor any changes in your vision, especially given your history of high myopia. Conditions such as retinal detachment or other retinal issues can sometimes present with new visual disturbances. If you notice any persistent changes, such as an increase in floaters, flashes of light, or any significant changes in your vision, it is crucial to seek an eye examination promptly.

In summary, the orange line you saw is likely a temporary visual phenomenon related to afterimages or the effects of floaters, especially in the context of your high myopia. However, maintaining regular eye check-ups is vital to ensure your eye health, particularly with your existing conditions. If you have any further concerns or if the phenomenon recurs, please consult with an eye care professional for a thorough evaluation.