The short answer
Both are rigid gas permeable lenses, but wearing schedules, designs, approved products and follow-up needs may differ.
Ortho-k and rigid gas permeable (RGP) lenses are medical devices. Lens design, wearing schedules and approved care products differ from person to person. Always give priority to the instructions from the fitting clinic and the labels supplied with the lenses and care products.
What to do
- Confirm the exact lens type and prescription. Make this part of a fixed routine rather than skipping it when time is short.
- Use a care system approved for that lens. Use the current product instructions; do not rely on a routine remembered from a different lens or solution.
- Do not sleep in a daily-wear RGP unless specifically prescribed. After the step, check whether the lens, eye or vision feels different from usual.
- Keep separate instructions for each lens type. If safe use cannot be confirmed, leave the lens out and use backup glasses.
Details people often miss
Safe lens wear depends on the whole care chain: clean and dry hands, an intact lens, a compatible care product, a clean case and tool, and a suitable handling area. One extra rinse cannot reliably correct a contaminated, expired or incorrectly used product. Never share personal accessories or transfer solution into an unlabelled container.
When to get help
Remove the lenses and contact the fitting clinic or an eye-care professional promptly if there is significant pain, persistent redness, light sensitivity, unusual tearing or discharge, or reduced vision. Do not repeatedly reinsert a lens to “test” the eye.
Care note: This article provides general lens-care education. It does not replace a diagnosis, individualized instructions from your eye-care professional, or the directions supplied with your lenses and care products.
This article provides general lens-care education. It does not replace a diagnosis, individualized instructions from your eye-care professional, or the directions supplied with your lenses and care products.