Should I Change My Glasses for a 50-Degree Vision Change? - Ophthalmology

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Hello doctor, my original prescription was left: -4.25 and right: -3.75.
Recently, I had my vision rechecked and found that my right eye has also changed to -4.25.
I would like to ask if it is necessary to change the lens for my right eye, or if a 0.50 diopter difference is not significant?

Wei Bing Wei Tang, 20~29 year old female. Ask Date: 2021/04/09

Dr. Gao Pilin reply Ophthalmology


Hello, Micro Ice Micro Sugar: If you want to change your glasses, you can add that option; if you don't plan to change them, it's fine to keep them as they are for now, as it won't have a significant impact.
Taiwan E-Hospital Puzi Hospital Ophthalmology: Monday, Tuesday, Thursday, and Friday mornings from 8:00 AM to 12:00 PM; Wednesday afternoons from 2:00 PM to 4:30 PM.
Online responses are for reference only; if necessary, you should visit a medical institution for treatment.
I hope to have the opportunity to serve you.
Gao Pilin

Reply Date: 2021/04/09

More Info


When considering whether to change your glasses due to a 50-degree change in vision, there are several factors to take into account. First, it's important to understand that a change in prescription, especially one as significant as 50 degrees, can have various implications for your visual comfort and overall eye health.

1. Understanding the Change: A change of 50 degrees in your prescription, particularly if it is in the right eye, can affect how you see both near and far distances. If your right eye has shifted from 375 to 425, this indicates an increase in nearsightedness (myopia). While some individuals may adapt to minor changes in their prescription over time, a 50-degree shift is substantial enough that it could lead to visual discomfort, eye strain, or headaches if not addressed.

2. Impact on Vision: The primary concern with not updating your glasses is that you may experience blurred vision, especially when focusing on objects at a distance. This can lead to compensatory behaviors, such as squinting or leaning closer to see better, which can further strain your eyes. Over time, this can contribute to fatigue and discomfort, potentially exacerbating any existing vision issues.

3. Balance Between Eyes: It’s also crucial to maintain a balance between your two eyes. If your left eye remains at 425 while your right eye is adjusted to 425, you may find that your visual system struggles to coordinate effectively. This imbalance can lead to issues such as double vision or difficulty focusing, particularly during tasks that require precise vision, such as reading or working on a computer.

4. Consulting with an Eye Care Professional: Given the importance of proper vision correction, it is advisable to consult with an eye care professional. They can perform a comprehensive eye exam to determine whether the new prescription is necessary and appropriate for your specific needs. They can also assess your overall eye health to rule out any underlying conditions that may be contributing to your vision changes.

5. Adaptation Period: If you decide to change your glasses, be aware that there may be an adaptation period. New lenses can feel different, and it may take some time for your eyes to adjust to the new prescription. During this time, you might experience some initial discomfort or distortion, but this should gradually improve as your eyes adapt.

6. Long-Term Eye Health: Regular eye exams are essential for maintaining long-term eye health. Changes in vision can sometimes indicate other health issues, so staying proactive about your eye care is important. If you notice any additional changes in your vision, such as increased difficulty seeing at night or sudden changes in clarity, you should seek immediate attention from an eye care professional.

In conclusion, given the significant change in your right eye's prescription, it is advisable to update your glasses. Doing so will not only enhance your visual comfort but also help maintain the balance between your eyes, reducing the risk of eye strain and other related issues. Always consult with an eye care professional to ensure that your vision correction is tailored to your specific needs and to monitor your overall eye health.

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