Quinn MP, Johnson D, Whitehead M, et al. - In the present study, the researchers sought to assess evolution in the distribution of new glaucoma patients between ophthalmologists and optometrists and to explore factors predicting provider type, in the context of expansion in the scope of optometry practice. From 2007 to 2018, a population-based study was conducted in Ontario, Canada, using validated datasets, encompassing time before and after the scope of optometry practice expansion in 2011. All patients aged 66 and up who received a glaucoma suspect diagnosis or first-line glaucoma treatment from ophthalmologists or optometrists were included in the study. Between 2007 and 2018, 401,560 patients received initial glaucoma care, including 303,440 by ophthalmologists and 98,120 by optometrists. After 2011, the rate of therapy initiation increased annually among optometrists, while it remained stable among ophthalmologists. Optometrists play a large and growing role in diagnosing glaucoma suspects; however, despite scope expansion, optometrists play a much smaller role in initiating glaucoma therapy.