You'll need your current optical prescription from your optometrist, including sphere (SPH), cylinder (CYL), and axis values for each eye. If you're unsure, just upload or email us your prescription and we'll take it from there.

Yes — this is one of our core specialties. Around 75% of people who wear glasses have some degree of astigmatism, and most dive mask sellers can't correct for it. We grind custom cylindrical lenses for your exact astigmatism values.

We work with premium optical glass from Zeiss, Hoya, Essilor, and Okm. These are the same manufacturers trusted by high-end opticians worldwide.

Yes. Besides single vision (near and far), we build progressive lenses for all distances. If you need a reading addition for gauges or cameras underwater, contact us — we can discuss the best solution for your specific needs.

Our lenses are ground to the same precision standards as your everyday eyewear. The difference is that we hand-edge and mount them into curved dive mask frames — a process that requires specialized optical expertise.

We carry 15+ premium mask brands, including Apeks, Aqualung, Atomic Aquatics, Beuchat, Cressi, Hollis, Mares, Omer, Pathos, Salvimar, Scubapro, Xdeep, Zeagle. Each model has different face shapes and field-of-view characteristics — check individual product page for details.

Mask fit depends on your face shape and personal comfort. If you've already found a mask that seals well for you, tell us the model and we'll check if we can fit prescription lenses into it. If you're unsure, the AquaLung Look is our most popular choice for a reason — it fits the widest range of faces.

Currently we only fit lenses into the mask models we stock, because we've tested and optimized the lens geometry for each one. This ensures the best optical result.

Customers within EU may also send us their own mask for prescription lens fitting. In this case, we produce and supply the lenses only. Please note that this option is available exclusively for masks shipped from within the EU, as shipments from outside the EU would involve customs procedures and additional complications. Shipping costs to and from our facility are the customer’s responsibility. If you’re interested in this option, please contact us in advance so we can arrange the details individually.

Both. Our masks work at any depth — whether you're snorkeling in shallow water or diving at 40 meters. The prescription lenses are built to the same standard either way.

Yes, we can accommodate younger divers. Contact us with the child's prescription and age, and we'll recommend the best-fitting mask option.

Each mask with custom prescription lenses is handcrafted as individual order. Typical production time is 14-21 days, depending on your prescription complexity and current order volume. All orders are shipped with DHL Express service, delivery time depends on your delivery destination.

Yes, we ship worldwide. EU customers enjoy free shipping. For orders outside the EU, shipping costs are calculated at checkout based on your location.

Yes — all orders shipped within the European Union include free standard shipping. No minimum order required.

Absolutely. Once your mask ships, you'll receive a tracking number via email so you can follow your package every step of the way.

We accept all major credit cards (Visa, Mastercard, American Express), PayPal, and Shopify Pay. All transactions are processed securely.

Contact us within 14 days of receiving your mask. If there's an optical error on our end, we'll regrind and replace the lenses at no charge. If your prescription has changed, we can discuss a re-lens at a reduced cost.

Because each mask is custom-made to your prescription, we cannot accept returns for change of mind. However, if there's a manufacturing defect or optical error, we'll make it right — guaranteed.

Yes. Our lenses are covered against manufacturing defects for 12 months from delivery. Normal wear, scratches from use, and prescription changes are not covered.

Contact us immediately with photos of the damage. We'll arrange a replacement or repair at no cost to you — shipping included.

Email us directly through our contact page. We typically respond within 24 hours on business days. For prescription questions, it helps to attach your prescription so we can give specific advice right away.