Should You Get New Glasses for a 50-Diopter Change in Vision?

Increase in prescription?

Hello, my original glasses prescription was around +1.25 diopters.
Recently, I went to an optical store for a vision test, and the result showed +1.75 diopters (left eye +0.75, right eye +1.00).
Since there is only a 0.50 diopter difference, do I need to get a new pair of glasses?

Dàxuéshēng, 20~29 year old female. Ask Date: 2007/02/28

Dr. Wang Zhangji reply Ophthalmology

Hello, is the 175 degrees the total for both eyes combined? It would be best to compare each eye separately, as some individuals are more sensitive to prescription changes.
If you find your old glasses blurry, it would be better to get a new prescription.
Sincerely, Dr.
Wang Zhang-ji, Ophthalmologist.

Reply Date: 2007/02/28

More Info

When it comes to changes in your vision, especially a difference of 50 diopters, it is generally advisable to consider getting new glasses. Vision can fluctuate for various reasons, including changes in the shape of the eye, the health of the retina, or even lifestyle factors such as increased screen time or reading. Here are some key points to consider regarding your situation:
1. Understanding Diopter Changes: A diopter is a unit of measurement that indicates the optical power of a lens. A change of 50 diopters, while it may seem small in the context of your overall prescription, can significantly affect your visual clarity and comfort. For example, if your previous prescription was around -1.25 (125 degrees) and your new prescription is -1.75 (175 degrees), this indicates a worsening of your myopia (nearsightedness).
2. Impact on Daily Activities: If you are experiencing difficulty seeing clearly, especially at distances that are important for your daily activities (like driving, watching TV, or even reading), it is crucial to address this change. Wearing glasses that do not match your current prescription can lead to eye strain, headaches, and fatigue. Over time, this can also contribute to further deterioration of your vision.

3. Adaptation to New Prescriptions: When you switch to a new prescription, your eyes may need some time to adjust. This adaptation period can vary from person to person. If you find that your vision is still blurry or uncomfortable after a few days of wearing your new glasses, it may be worth revisiting your eye care professional to ensure that the prescription is accurate and that there are no other underlying issues affecting your vision.

4. Potential for Eye Strain: Continuing to wear an outdated prescription can lead to significant eye strain, especially if you are using your eyes for prolonged periods, such as reading or using digital devices. This strain can manifest as headaches, blurred vision, and even discomfort in the eyes. Therefore, it is essential to have a prescription that accurately reflects your current vision needs.

5. Consulting an Eye Care Professional: It is always best to consult with an eye care professional when you notice changes in your vision. They can perform a comprehensive eye exam to determine the exact nature of your vision changes and recommend the best course of action. This may include getting new glasses, but it could also involve other treatments or lifestyle adjustments.

In summary, given the 50-diopter change in your vision, it is advisable to get new glasses that match your updated prescription. This will not only improve your visual clarity but also help prevent potential eye strain and discomfort. Regular eye exams are crucial for maintaining eye health, especially as you notice changes in your vision. Always prioritize your eye health by seeking professional advice when in doubt.

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