If you wear glasses and find it hard to see clearly underwater, a prescription dive mask is an excellent solution. It eliminates the need for contact lenses and enhances your underwater vision for a safer, more enjoyable diving or snorkeling experience.

Prescription lenses have three key measurements: Sphere (SPH), Cylinder (CYL), and Axis. Sphere indicates near-sightedness or farsightedness. Cylinder and Axis correct astigmatism. You might also see an ADD value for additional near-vision correction, such as reading your dive computer. If you have mild astigmatism (0.75 to 2.00), premade lenses typically work well.

Our premade lenses cover spherical corrections from -8.0 to +4.5 diopters. Bifocal lenses are available between +1.0 and +4.5 diopters. If your astigmatism correction exceeds 2.00, you may need custom-made lenses—please contact our Customer Service for personalized advice.

Yes! High-quality masks come from major manufacturers that offer spare parts. This means your mask can stay in top condition for years, and you can keep using your prescription lenses even after replacing some components.

Prescription lenses come in 0.5 diopter increments. As a general rule, round down for minus (near-sighted) prescriptions and round up for plus (far-sighted). For example, if your SPH is +1.25, select +1.5; if it’s -1.25, select -1.0.

Once you place your order, we custom-fit your lenses into the mask and ship it promptly. We offer next day delivery for orders placed before 2 PM. However, to ensure quality and accuracy, please allow up to 2 business days for processing and dispatch if you have chosen Next Day Delivery or Express Shipping.

Prescription lenses are custom-fitted and integral to the mask, so they cannot be returned or exchanged. Please double-check your prescription carefully before ordering. Our Customer Service team is happy to assist with any questions.

Our friendly Customer Service Team is available via email at support@mikesdivestore.com, by scheduling a video consultation, or in person at our Chiswick store for expert advice.