why cylindrical power increases
I am really confused about something I’ve noticed with my eye prescription lately. A few months ago, I went for a check-up, and my cylindrical power was stable at around -1.50, but now I’m shocked to see it has increased to -2.25! I mean, what the heck? I am only in my 30s and had always thought I had average vision. I didn’t think my eyes could change that fast! I do spend a lot of time on my computer because of work, but I try to take breaks and all, so I’m not sure why cylindrical power increases that much. Like, is it something I’m doing wrong, or is this just a normal part of aging that I didn’t know about? My mom had some issues with her eyesight too, so I wonder if there’s any genetic thing involved here, but I thought I was fine. I keep hearing from friends that more screen time can really mess with your eyes—could that be a factor in why cylindrical power increases in my case? Should I just be using glasses more often, or is there a possibility of this worsening? Kinda worried about future vision stuff ya know. Anyone got any insights on why cylindrical power increases like this?
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Doctors' responses
Changes in your cylindrical power, also known as astigmatism, can happen for several reasons, and you’re not entirely off thinking about the role of both lifestyle and genetics. Astigmatism is due to an irregular curvature of the cornea or lens, and it affects how light is focused into the eye. This change can occur over time, potentially leading to an increase in your prescription. One possibility is that the structural components of your eyes, the cornea or lens, are undergoing changes that could be influenced by genetics. It wouldn’t be uncommon if there’s a family history of similar eye issues.
Regarding your computer use, it’s a good practice to take regular breaks to reduce eye strain—a common problem today. The 20-20-20 rule, where you take a break every 20 minutes to look at something 20 feet away for at least 20 seconds, is often recommended to minimize digital eye strain, although it doesn’t directly cause astigmatism. Increased screen time primarily affects focusing ability and can cause discomfort but isn’t typically linked to changes in astigmatism itself.
Wearing your corrective glasses consistently could help improve comfort and prevent eye strain. As for progression, it’s a good idea to have regular eye examinations to monitor any changes and adjust your prescription as needed. If you notice sudden changes in your vision or other concerning symptoms such as eye pain, redness, or abrupt visual distortion, seek medical advice promptly, as these could indicate more serious issues. Remember, it’s essential to maintain regular follow-ups with an eye care professional who can offer personalized insights based on your specific condition and family history.
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