QLT Inc. is a biotechnology company. The Company is focused on the development and commercialization of ocular products. The Company's operations consist of clinical development programs focused on its synthetic retinoid, QLT091001, for the treatment of certain age-related and inherited retinal diseases (IRD) caused by retinal pigment epithelium protein 65 (RPE65) and lecithin: retinol acyltransferase (LRAT) gene mutations. QLT091001 is an orally administered synthetic retinoid replacement for 11-cis-retinal. The Company is developing QLT091001 for the treatment of IRD caused by RPE65 and LRAT gene mutations, which indication includes Leber Congenital Amaurosis (LCA) and Retinitis Pigmentosa (RP). It has completed a Phase Ib clinical proof of concept study and a follow-up retreatment study in LCA and RP patients with autosomal recessive mutations in RPE65 or LRAT, and a Phase 1b study in RP patients with autosomal dominant mutations in RPE65.