Check your eyeglass prescription — look for the SPH (sphere) values for each eye. For example, if your prescription shows OD: -2.50, OS: -3.00, select “Different L/R” and choose -2.50 for right and -3.00 for left. Not sure? Use our Prescription Calculator — enter your SPH and CYL values and we will calculate the standard diopter for you.

That is exactly what ALEEFA specializes in. Unlike most brands that only offer single-power lenses, we support independent prescriptions for each eye — no compromises, no adapters. Just select “Different L/R (Recommended)” and choose the diopter for each eye separately.

Water refracts light differently than air. Without compensation, your on-land prescription will be slightly underpowered underwater. We automatically add +0.5D to every prescription so your vision stays sharp beneath the surface. This means a -3.00 on-land becomes -2.50 in our lenses.

We support -1.00 to -10.00 for nearsightedness (myopia) and +1.00 to +5.00 for farsightedness (hyperopia). If your prescription falls outside this range, please contact us for custom options.

Yes. Enter your CYL (cylinder) value in our product page fields, and our calculator will convert it to spherical equivalent — saving you from needing separate astigmatism lenses. For best results, CYL values up to -4.00 are supported.

We ship from China within 24 hours. Estimated delivery times: US: 7–12 business days · Europe: 10–18 business days · Rest of World: 12–20 business days. All orders over $50 ship free.

We ship worldwide. All major destinations including US, Canada, UK, EU countries, Australia, and most of Asia and South America are supported.

Yes. A tracking link will be emailed to you once your order ships. You can also log into your account and check order status anytime.

Yes, all products ship from our facility in Quanzhou, China. We use reliable international carriers (China Post, DHL, or UPS depending on destination). We have shipped thousands of orders worldwide with a 99%+ delivery success rate.

We offer a 30-day satisfaction guarantee. Non-custom products can be returned for a full refund. Custom prescription items can be exchanged for the correct prescription within 30 days. See our full policy for details.

If you selected the wrong diopter, contact us within 30 days and we will exchange the lenses for the correct power. Standard exchange fees may apply for custom ground lenses.

Orders can be canceled within 2 hours of placement, before production begins. After that, the prescription lenses enter production and cannot be canceled.

Rinse with fresh water after every use. Use the included anti-fog spray before diving. Store in the included carry case. Never wipe dry — let it air dry or gently pat with a soft cloth. Avoid direct sunlight and heat exposure.

With proper care, our tempered glass and resin lenses last for years. The anti-fog coating may need reapplication every 6–12 months depending on usage — we sell refill spray in our accessories section.