Shipped with Care. No Hidden Fees. Just Clear Vision Ahead.
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Mask Description
RX Action – Made for the Details Up Close and the Views Far Away
Bring the world below into perfect focus with the RX Action mask — now available for farsighted vision. Whether you're spotting fish just beyond reach or checking your snorkel gear, this mask keeps it all crisp and comfortable.
Designed for those who need help seeing up close — perfect for reading gauges, spotting details, or adjusting your gear underwater.
Custom select from our available farsighted options to match your needs.
Hypoallergenic soft silicone seals gently and securely to your face — no leaks, no fuss, just all-day comfort.
Slides on smooth and stays put, even with longer hair. Has an quick release clip.
Comfort Fit!
Ready to explore more comfortably than ever? The RX Action mask is your go-to for better underwater adventures.
Mask Sizing Chart
Rx Action (Large)
Size Category: Large — roomy fit for broader/longer faces.
How to measure
1Width: straight line from outer eye corner to outer eye corner (don’t wrap).
2Height: from just under your nose to just above your eyebrow line.
Mask Size Ranges
Min (in)
Max (in)
Width
4⅛ ″
5¼ ″
Height
3¼ ″
4½ ″
Options:
Nearsighted (−1.00 to −9.00) · Farsighted (+1.00 to +5.00) · Skirt: Black · Frame: Black · Integrated action-camera mount.
Prescription Lens Info
This mask features nearsighted (SPH) lenses in negative diopters (e.g., -1.50, -1.75, -2.00).
Underwater magnification enlarges objects by ~33% – we recommend selecting a lens 0.25 to 0.75 diopters lower for optimal clarity. (e.g., a -2.75 can choose -2.50 or -2.00).
Tempered glass lenses for strength, safety, and clear underwater vision.
What is the difference between nearsighted and farsighted lenses?
Nearsighted (Myopia) Lenses: These lenses have a negative sphere (SPH) value and correct distance vision. Farsighted (Hyperopia) Lenses: These lenses have a positive SPH value and correct close-up vision.
How do I find the sphere (SPH) value on my prescription?
The SPH value is usually in the first column of your prescription, marked as "SPH" or "Sphere." A negative number indicates nearsightedness, while a positive number indicates farsightedness.
How Should I Adjust My Prescription for Clear Vision Underwater?
Prescription Adjustment for Underwater Clarity: To achieve clear and accurate vision underwater, we recommend selecting a lens strength that is 0.50 to 0.75 diopters weaker than your regular prescription. This adjustment helps to compensate for the magnification effect that occurs underwater, reducing the risk of distortion.
Example: Your Regular Prescription: Right Eye (OD): Sphere = -2.75; Left Eye (OS): Sphere = -3.50. Recommended Lens Strength: Right Eye (OD): Sphere = -2.00; Left Eye (OS): Sphere = -3.00.
Can I choose a lens strength that isn’t listed in the dropdown?
The lenses listed are the only ones available for the specific mask in the listing. If your exact strength isn’t available, select a lens that stays within the recommended adjustment range of 0.50 to 0.75 diopters weaker than your regular prescription. This ensures you maintain clear and accurate vision underwater within a safe and effective range.
Can I choose different lens strengths for each eye?
Yes, you can select different lens strengths for each eye based on your individual prescription. We offer a range of lens strengths, and you can mix and match any combination if available in our dropdown menu.
How do I upload my prescription during checkout?
You don’t need to upload your prescription. If you require specific lens strengths or have questions about your order, please send us a message through the online chat or email us at info@oceansoptics.com. We’re happy to help ensure you get the correct lenses for your needs.
What happens if I accidentally choose the wrong lens strength?
Contact customer support immediately if you choose the wrong strength. We may be able to correct the order, depending on the processing stage.
Are your lenses safe for both snorkeling and scuba diving?
Yes, all our lenses are certified HD Tempered glass, safe for both snorkeling and scuba diving up to 100ft.
How long does it take to receive lenses, and can I track my order?
Orders typically take 7-14 days to process. You will receive a tracking number via email once shipped.
What is your return or exchange policy for prescription lenses?
Your Satisfaction, Guaranteed.
We want you to love your new mask, but if for any reason you're not completely satisfied, you have 30 days from the date of delivery to return it. Get in touch and send it back to us, and we’ll take care of the rest. For more information on our 30-day returns, visit our full policy on Oceans Optics.
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