Troubleshooting Contact Lens Issues for High Myopia and Astigmatism - Ophthalmology

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Contact lenses


Hello Doctor: My glasses prescription shows that I have approximately -9.50 diopters in my left eye and -8.50 diopters in my right eye, along with astigmatism.
In recent months, when wearing contact lenses, my left lens tends to shift and feels like it is floating, causing a sensation of a foreign body in my eye.
However, upon inspection, there doesn't seem to be anything wrong, and shortly after, I experience some discharge.
My right eye does not have this issue.
I consulted with the owner of the optical shop, and he mentioned that my prescription might be too strong for the contact lenses to stay in place.
I am using daily disposable lenses, so I am unsure why this keeps happening.
I visited an ophthalmologist, and she said my left eye appears normal, so I am uncertain about what to do next.
I just recently changed to a new pair of contact lenses, and I would like to continue wearing them.
What should I do?

Nai Cha, 10~19 year old female. Ask Date: 2016/04/27

Dr. Gao Pilin reply Ophthalmology


Hello, Milk Tea: If your contact lenses are floating, it may be due to a mismatch in curvature and your cornea.
If possible, please visit a large hospital with a contact lens clinic for a detailed examination.
In Taiwan, you can go to the Department of Ophthalmology at Puzi Hospital: Monday to Friday from 8:00 AM to 12:00 PM and Wednesday from 1:00 PM to 4:30 PM.
Online responses can only serve as a reference; it is essential to seek medical attention at a healthcare facility if necessary.
I hope to have the opportunity to assist you.
Best regards, Gao Pilin.

Reply Date: 2016/04/27

More Info


When dealing with contact lens issues, especially for individuals with high myopia and astigmatism, it’s essential to understand the unique challenges these conditions present. High myopia, defined as a refractive error greater than -6.00 diopters, can lead to various complications, including retinal detachment and other ocular health issues. Astigmatism, on the other hand, is caused by an irregular curvature of the cornea or lens, which can complicate vision correction.

From your description, it seems you are experiencing discomfort and instability with your left contact lens, which is drifting and causing a sensation of foreign body presence. Here are some troubleshooting steps and considerations that may help you resolve these issues:
1. Lens Fit and Type: The first thing to consider is whether the contact lenses you are using are the right fit for your eyes. High myopia and astigmatism often require specialized lenses, such as toric lenses designed specifically for astigmatism. If your lenses are not fitting properly, they may not adhere well to the surface of your eye, leading to the drifting sensation you described. It might be beneficial to consult with an eye care professional who specializes in fitting contact lenses for high myopia and astigmatism.

2. Lens Material: The material of the contact lens can also play a significant role in comfort and stability. Some materials are more prone to drying out or may not provide adequate moisture, leading to discomfort. Consider discussing with your eye care provider about trying different brands or types of lenses that may offer better hydration and stability.

3. Proper Care and Hygiene: Ensure that you are following proper hygiene practices when handling your contact lenses. This includes washing your hands before touching your lenses, using the appropriate cleaning solution, and storing them correctly. If your lenses are not cleaned properly, they can accumulate deposits that may irritate your eyes and lead to discomfort.

4. Regular Eye Exams: Regular check-ups with your eye care provider are crucial, especially since you have high myopia and astigmatism. These exams can help monitor your eye health and ensure that your prescription is up to date. Changes in your vision or eye health can affect how well your contact lenses fit and function.

5. Consider Alternative Options: If contact lenses continue to be problematic, you might want to explore alternative vision correction options. For instance, some individuals with high myopia and astigmatism find success with rigid gas permeable (RGP) lenses, which can provide sharper vision and may be more stable on the eye than soft lenses. Additionally, surgical options like LASIK or implantable contact lenses (ICL) could be considered, depending on your overall eye health and suitability.

6. Monitor Symptoms: If you notice any unusual symptoms, such as increased redness, discharge, or persistent discomfort, it’s essential to seek immediate attention from an eye care professional. These could be signs of an infection or other complications that require prompt treatment.

7. Lifestyle Adjustments: Lastly, consider your daily habits. If you spend long hours in front of screens, ensure you take regular breaks to reduce eye strain. This can help alleviate some discomfort associated with contact lens wear.

In conclusion, while high myopia and astigmatism present unique challenges for contact lens wearers, there are various strategies and options available to improve comfort and vision. It’s crucial to work closely with your eye care provider to find the best solution tailored to your specific needs. Regular follow-ups and open communication about your experiences with contact lenses will help ensure that you maintain optimal eye health and comfort.

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