Seeing Spots on Screen: Eye Health Concerns for Myopic Students - Ophthalmology

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Hello! It's great that you're taking an interest in your eye health, especially as a student with myopia. Your experience of seeing spots on the screen, particularly in low light, can be concerning, but let's break down what might be happening and what you can do about it.

Firstly, the phenomenon you're describing—seeing spots or flashes of light when looking at a screen, especially in dim lighting—can be attributed to several factors. Given your myopia (nearsightedness) of -8.00 and -7.00, your eyes are more sensitive to visual disturbances, particularly when they are fatigued or under strain.

1. Visual Fatigue: Prolonged use of screens, especially in low light, can lead to visual fatigue. This is often accompanied by symptoms such as dry eyes, blurred vision, and the perception of spots or flashes. When your eyes are tired, they may not focus as well, leading to temporary visual disturbances. It's essential to take regular breaks using the 20-20-20 rule: every 20 minutes, look at something 20 feet away for at least 20 seconds.

2. Afterimages: When you look at a bright screen in a dark environment, your eyes can experience afterimages. This occurs when the photoreceptors in your retina become overstimulated and continue to send signals to your brain even after the stimulus is removed. This could explain why you see spots or flashes when you first look at your phone after being in the dark.

3. Floaters and Visual Snow: Given your history of myopia, you may also be more prone to seeing floaters—tiny spots or lines that drift across your field of vision. These are usually harmless but can be more noticeable in certain lighting conditions. The phenomenon of "visual snow," where you see a grainy or snowy effect in your vision, can also occur, particularly in low light.

4. Retinal Health: Since you mentioned that your last eye examination was about a year and a half ago, it would be wise to schedule a follow-up appointment. While the symptoms you describe may not indicate a serious issue, changes in your vision, especially with a high degree of myopia, warrant regular check-ups. Conditions like retinal detachment or tears can occur more frequently in myopic individuals, so it's essential to stay vigilant.

5. Screen Time Management: Since you mentioned that you don’t often use your phone in the dark, it might be beneficial to limit screen time in low-light conditions. If you need to use your phone at night, consider using a blue light filter or adjusting the brightness to reduce strain on your eyes.

6. Eye Exercises and Care: Incorporating eye exercises can help alleviate some of the strain. Simple exercises include rolling your eyes, focusing on distant objects, and blinking frequently to keep your eyes moist. Staying hydrated and maintaining a balanced diet rich in vitamins A, C, and E can also support eye health.

In conclusion, while the symptoms you're experiencing may not be immediately alarming, they do highlight the importance of regular eye care, especially for someone with significant myopia. If the spots or flashes persist or worsen, or if you experience any new symptoms such as sudden vision changes, it’s crucial to consult with an eye care professional promptly. Regular eye exams are vital for monitoring your eye health and ensuring that any potential issues are addressed early. Take care of your eyes, and don’t hesitate to reach out to a healthcare provider if you have concerns!