“…is likely a useful treatment for patients with photophobia from a variety of etiologies, it is often not implemented. Barriers to clinical use in Canada were described by Lee et al28 to be related to availability.Out of 88 optical shops that responded (192 were asked) in Toronto and Vancouver, only seven reported offering tinted lens services. The shops cited lack of awareness of FL-41 and its indications, low customer demand, and lack of necessary equipment as barriers.…”