RX-Safety surfaces every Costa prescription order in our U.S.-based optical lab. You can select from the following lens designs:
- Single Vision: One corrective zone for distance, intermediate, or near. The most common Rx for sunglasses.
- Digital Single Vision: These offer wider clear zones at the periphery and reduced edge distortion. They’re often used for stronger prescriptions and use cases like fishing and driving, where peripheral clarity matters.
- FT-28 Bifocal: A traditional lined bifocal with a 28mm reading segment. Best for users who want a sharply defined near-vision zone.
- No-Line Progressive: A graduated lens with distance, intermediate, and reading zones. These are blended without any visible line and are a good fit for everyday wear.
Lens material options include:
- Polycarbonate: Impact-resistant and lightweight. The most common safety and sports material.
- CR-39: A traditional plastic lens with strong optical quality, used where impact resistance is less critical.
- Glass: Highest scratch resistance and optical clarity. However, these are heavier than poly or CR-39, so they’re not right for impact-prone environments.
- High-Index (1.67, 1.74): Thinner, lighter lenses for stronger prescriptions, reducing the “coke bottle” effect at the edges.
All Rx lens options can be paired with polarization, mirror coatings, anti-reflective backside treatment, and scratch-resistant hard coats.





