Community Forum

Finding Zeiss Z1 blue lenses to treat photosensitive epilepsy

Staff Notice

For about 3 percent of people with epilepsy, exposure to flashing lights at certain intensities or to certain visual patterns can trigger seizures. This condition is known as photosensitive epilepsy.

Read more:

I found a study which shows that Carl Zeiss brand z1 blue lenses are highly effective in treating photosensitive epilepsy. The study is at:

These lenses are available in Europe, but I haven't been able to find them in the US or on the internet. I emailed Zeiss customer service about this, but I got no response. Does anyone know where I can find these lenses. I suffer from photosensitivity (as well as temporal lobe epilepsy). I use polarized glasses, and these help some, but I'd really love to try these lenses.

Also, has anyone with photosensitivity tried using any kind of blue tinted glasses, or cross polarized glasses? If you have had good results, would you please tell me which brand you used and where I can find them?

UPDATE: I found out from another website that these lenses are not available in North America. This came from Carl Zeiss customer service.



OK, here is what I have to offer. There is no luck with the two internet postings for getting Z1 lenses. The guy in Cal has on contacts and has been trying forever to get his name off the Net for these. The other is a no answer ever at any time. Now I have found blue lenses A The are a blue Tint 80% blue. for me they are about 10-30% effective at reducing the effect of being flashed. they are most effective on indirect light sources and delaying episode on set. the good thing about the Zenni option is that they are cheep. $11 on up. I am looking at Cobalt lenses at Welding supply Shop. these are heat blast furnace glasses and are sold by miller welding at local weld shop or can be ordered but not Rx. hope this helps.


I am an Italian optician and I can provide the original zeiss lenses even with prescription


Antonio Bernabei

The lenses are in fact very helpful! There are 3 sources I know of. You can order them to be made with your vision prescription or you can get plain lenses to be put in a clip-on. There's more information at

Antonio Bernabei  

Ottica Bernabei
Via Del Corso, 4
Phone:  +39 06.3610190

I have ordered from Bernabei--his service, price, and English are all excellent

Richard L. Silver, O.D.
Professional VisionCare Associates
14607 Ventura Blvd.
Sherman Oaks, CA, USA 91403
Office: (818) 789-3311
Fax: (818) 789-1047

Norm Johnson, manager
Optometrists’ Clinic Inc.
12318 Jasper Ave.
Edmonton, Alberta
Canada T5N 3K5


Our Mission

The mission of the Epilepsy Foundation is to lead the fight to overcome the challenges of living with epilepsy and to accelerate therapies to stop seizures, find cures, and save lives.

24/7 helpline