Troubles with Contact Lenses: Seeking Advice for Discomfort and Dizziness - Ophthalmology

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When it comes to wearing contact lenses, especially for someone with a high prescription like yours, discomfort and dizziness can be quite concerning. It’s important to understand that wearing contact lenses that are not specifically prescribed for your eyes can lead to various issues, including the symptoms you are experiencing.

Firstly, the discomfort you feel in your left eye, described as a "gritty" sensation, could be due to several factors. One possibility is that the contact lenses you are using may not fit your eyes properly. Contact lenses come in different shapes and sizes, and using a lens that does not match the curvature of your eye can lead to discomfort. Additionally, if the lenses are too dry or if there is a lack of lubrication, this can also cause a gritty feeling.
Another important consideration is the prescription difference. You mentioned that you typically wear glasses with a prescription of over -800 for myopia and -200 for astigmatism, while the lenses you are currently using are -750. This slight difference in prescription could lead to visual discomfort and dizziness, especially if your eyes are not accustomed to that particular lens. The brain may struggle to reconcile the visual input from the lenses with what it expects based on your usual prescription, leading to symptoms like dizziness.

Moreover, wearing contact lenses for an extended period, especially beyond the recommended duration, can also lead to discomfort. Contact lenses, even if they are disposable, should be replaced according to the manufacturer's guidelines. If you have been wearing the same pair for over two months, it might be time to consider a new pair, as proteins and lipids from your tears can build up on the lenses, leading to irritation.

Here are some recommendations to alleviate your discomfort:
1. Consult an Eye Care Professional: It’s crucial to see an optometrist or ophthalmologist who can assess your eye health and the fit of the contact lenses. They can provide a proper fitting and possibly prescribe lenses that are better suited to your eyes.

2. Consider Your Prescription: Discuss the possibility of getting a new prescription for contact lenses that matches your glasses more closely. This can help reduce visual strain and dizziness.

3. Proper Lens Care: Ensure that you are cleaning and storing your lenses properly. Use the recommended solutions and avoid using tap water or saliva to clean your lenses.

4. Limit Wear Time: If you experience discomfort, consider limiting the time you wear the lenses each day. Give your eyes a break and switch back to glasses when possible.

5. Use Rewetting Drops: Over-the-counter rewetting drops can help alleviate dryness and discomfort while wearing contact lenses. Make sure the drops are compatible with contact lenses.

6. Monitor for Other Symptoms: If you continue to experience dizziness or if your symptoms worsen, it’s essential to seek medical attention promptly. Dizziness can sometimes be a sign of other underlying issues that may need to be addressed.

In summary, while contact lenses can provide convenience and comfort, it’s vital to ensure that they are the right fit and prescription for your eyes. Discomfort and dizziness are signals from your body that should not be ignored. Consulting with an eye care professional will provide you with the best course of action to ensure your eye health and comfort.