Is It Safe to Wear Rigid Gas Permeable Contacts with a Higher Prescription? - Ophthalmology

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Wearing rigid gas permeable (RGP) contact lenses with a higher prescription than what they were originally designed for can pose certain risks to your eye health. It’s important to understand the implications of wearing lenses that do not match your current prescription, especially when there is a significant difference, as in your case.

First and foremost, RGP lenses are designed to provide clear vision by correcting refractive errors, such as myopia (nearsightedness) or hyperopia (farsightedness). When you wear lenses that are not suited to your current prescription, you may experience visual discomfort, which can include blurred vision, eye strain, and headaches. This is because your eyes are working harder to compensate for the incorrect prescription, leading to fatigue and discomfort over time.

In your situation, with a current naked eye prescription of -7.50 diopters and RGP lenses that correct only to -5.00 to -5.50 diopters, you are likely to experience significant visual compromise. The lenses may not provide adequate correction for your vision needs, which can lead to symptoms such as:
1. Eye Strain: Your eyes may become fatigued as they attempt to focus through lenses that do not provide the necessary correction.

2. Headaches: Prolonged use of incorrect prescription lenses can lead to tension headaches due to the strain on your eye muscles.

3. Blurred Vision: You may find that your distance vision is not clear, which can affect your daily activities, especially if you drive or engage in tasks that require good vision.

4. Increased Risk of Eye Issues: Wearing lenses that do not match your prescription can lead to more serious issues over time, such as corneal hypoxia (lack of oxygen to the cornea), which can cause discomfort and potential long-term damage to your eyes.

It’s also worth noting that if you have been accustomed to wearing daily disposable lenses, switching back to RGP lenses may require an adjustment period. RGP lenses can feel different, and if they are not fitting correctly or if the prescription is not appropriate, this can exacerbate discomfort.

Given these factors, it is highly advisable to consult with an eye care professional before continuing to wear your current RGP lenses. They can perform a comprehensive eye examination to determine your exact prescription needs and assess the fit of your lenses. If necessary, they can provide you with a new pair of RGP lenses that match your current prescription, or suggest alternative options such as soft contact lenses or updated daily disposables that may be more comfortable and suitable for your vision needs.

In summary, while wearing RGP lenses with an outdated prescription may not cause immediate harm, it can lead to discomfort and visual issues. It is essential to prioritize your eye health by seeking professional advice and ensuring that your lenses are appropriate for your current vision requirements. Regular eye exams are crucial for maintaining optimal eye health and ensuring that your corrective lenses provide the best possible vision.