Astigmatism or Diplopia: Your Eye Symptoms - Ophthalmology

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Astigmatism or diplopia?


Recently, when I raise my eyebrows and stretch my eyelids, I see double vision.
I already have astigmatism of 150 degrees and wear glasses for this prescription.
Is this a worsening of my astigmatism or is it diplopia that requires medical attention?

Feige, 10~19 year old female. Ask Date: 2017/09/10

Dr. Cai Wenyuan reply Ophthalmology


Hello, recently when I raise my eyebrows and stretch my eyelids, I experience double vision when looking at things.
This may be due to the movement and is not true diplopia.
Wishing you peace and health.
Sincerely, Dr.
Tsai Wen-Yuan, Director of the Ophthalmology Department, Taoyuan General Hospital, Ministry of Health and Welfare.

Reply Date: 2017/09/10

More Info


When it comes to understanding your eye symptoms, particularly in the context of astigmatism and diplopia (double vision), it is essential to consider the nuances of each condition and how they may relate to your experiences. Based on your description, it seems you are experiencing visual disturbances that could be linked to your existing astigmatism, but there are also indications that suggest the possibility of diplopia.

Astigmatism is a common refractive error caused by an irregular shape of the cornea or lens, leading to blurred or distorted vision. The fact that you have a known astigmatism of 150 degrees indicates that your cornea is not perfectly spherical, which can cause light to focus on multiple points in the eye rather than a single point on the retina. This can result in visual distortions, particularly when looking at objects at certain angles or distances. If you notice that your vision becomes more distorted or blurry after specific movements, such as raising your eyebrows or stretching your eyelids, it could be a sign that your astigmatism is affecting your visual acuity more than before.

On the other hand, diplopia is characterized by seeing two images of a single object. This can occur for various reasons, including issues with the eye muscles, neurological conditions, or even refractive errors like astigmatism. If you are experiencing double vision, especially after making facial movements, it could indicate that the muscles controlling your eye movements are not coordinating properly. This misalignment can lead to the perception of overlapping images.

Given your symptoms, it is advisable to seek a comprehensive eye examination from an eye care professional. They can perform specific tests to determine whether your symptoms are due to worsening astigmatism or if they indicate a more serious condition such as diplopia. During the examination, the doctor will assess your visual acuity, check for any muscle imbalances, and evaluate the overall health of your eyes.

In the meantime, here are some considerations to keep in mind:
1. Monitor Your Symptoms: Keep track of when the symptoms occur and any specific activities or movements that seem to trigger them. This information can be valuable for your eye care provider.

2. Use Corrective Lenses: If you have been prescribed glasses for your astigmatism, ensure that you are wearing them consistently, as they can help correct the refractive error and potentially reduce visual disturbances.

3. Avoid Eye Strain: If you notice that certain activities, such as prolonged screen time or reading, exacerbate your symptoms, take regular breaks to rest your eyes.

4. Consider Eye Exercises: Some eye care professionals recommend exercises to help strengthen eye muscles and improve coordination, particularly if diplopia is suspected.

5. Stay Informed: Understanding your condition can help alleviate anxiety. Researching astigmatism and diplopia can provide insights into what you might be experiencing.

In conclusion, while your existing astigmatism may be contributing to your visual symptoms, the occurrence of double vision warrants further investigation. It is crucial to consult with an eye care professional who can provide a thorough evaluation and appropriate management based on your specific situation. Early intervention can often lead to better outcomes, so do not hesitate to seek help if your symptoms persist or worsen.

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