These Zeiss lenses have been found to be helpful for patients with epilepsy problems.
We can provide these lenses on any frame and with any power. We can ship worldwide. Send us an email to info@otticabernabei.com for further details and costs.
Zeiss had developed some years ago this special tinting available for any CR39 lenses, and we can provide

1. lenses with no power with standard diameter (65 millimeters), standard thickness (2 millimeters) and standard base curve
2. lenses with no power and with any necessary diameter, thickness or base curve
3. lenses with any power with any combination for diameter, thickness or base curve

For further information download the document.