Is Wearing Old Glasses Enough for Increased Astigmatism? - Ophthalmology

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What is the prescription?


Hello, doctor.
If astigmatism increases from 50 degrees to 75 degrees, is it sufficient to continue wearing old glasses with astigmatism correction of 50 degrees? Will not having the 75 degrees correction worsen the astigmatism? Thank you, doctor.

Niming, 20~29 year old female. Ask Date: 2022/06/02

Dr. Cai Wenyuan reply Ophthalmology


It should be possible.

Reply Date: 2022/06/02

More Info


When it comes to astigmatism, wearing glasses that do not match your current prescription can lead to discomfort and visual disturbances. Astigmatism occurs when the cornea or lens of the eye is irregularly shaped, causing blurred or distorted vision. If your astigmatism has increased from 50 degrees to 75 degrees, continuing to wear glasses that only correct for 50 degrees may not provide adequate vision correction.

1. Impact of Wearing Incorrect Prescription Glasses: Wearing glasses that do not correct your current level of astigmatism can lead to several issues. You may experience eye strain, headaches, and fatigue, especially if you are using your eyes for tasks that require clear vision, such as reading or working on a computer. Over time, this strain can lead to discomfort and may even exacerbate existing vision problems. However, it is important to note that wearing an incorrect prescription does not directly cause your astigmatism to worsen; rather, it can make your current symptoms more pronounced.

2. Astigmatism and Prescription Changes: Astigmatism can change over time due to various factors, including age, eye health, and underlying conditions. Regular eye examinations are crucial to monitor these changes. If your astigmatism has increased, it is advisable to update your prescription to ensure optimal vision correction. This is particularly important if you notice changes in your vision or experience discomfort with your current glasses.

3. Effects of Uncorrected Astigmatism: If you continue to wear glasses that do not adequately correct your astigmatism, you may find that your visual acuity is compromised. This can lead to difficulties in daily activities, such as driving, reading, or using digital devices. While it may not directly cause your astigmatism to worsen, the discomfort and strain from inadequate correction can impact your overall eye health and quality of life.

4. Recommendations: It is recommended that you schedule an eye examination with an optometrist or ophthalmologist to assess your current vision and determine the appropriate prescription for your glasses. If your astigmatism has indeed increased, your eye care professional can provide you with the correct lenses to ensure that you have clear and comfortable vision. Additionally, if you experience any other symptoms, such as blurred vision, double vision, or eye discomfort, be sure to discuss these with your eye care provider.

In summary, while wearing old glasses with an outdated prescription for astigmatism may not directly worsen your condition, it can lead to significant discomfort and visual impairment. Regular eye exams and timely updates to your prescription are essential for maintaining optimal eye health and ensuring that you can see clearly and comfortably.

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