Show pageOld revisionsBacklinksBack to top This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong. ====== Lenses for photosensitive epilepsy ====== ====Zeiss Clarlet Z1 (F133) blue lenses==== * Blue tinted lenses (filter red light) have the most research support * 610 patients in a large study had Z1 lenses abolish the EEG light response in 75% and reduced in additional 18% and unchanged in 6% * Red is the most epileptogenic wavelength * The darker the tint the more reduction of the EEG response possible but vision is also reduced especially in lower light environments making functioning more difficult with darker tints * [[https://pubmed.ncbi.nlm.nih.gov/16529617/|Suppressive efficacy by a commercially available blue lens on PPR in 610 photosensitive epilepsy patients. Capovilla et.al. 2006. 47(3):529-33]] * [[https://www.theraspecs.com/petitewrap-theraspecs/?lens=zblue| Thera Specs Z1 options for kids]] ====Other blue lens tints==== * B1+G1 or B1+G2 combinations have shown EEG improvement as well. ====Other complementary strategies==== * wearing regular sunglasses * covering one eye * sitting > 2 meters from screens * reducing screen contrast