PTPRB and open-angle glaucoma: While these results highlight the potential of PTPRB as a therapeutic target for patients with TEK-associated PCG, the recent association of Angpt-TEK variants with ocular hypertension and the findings of Kim et al using an ANGPT2 clustering antibody suggest that this pathway may also provide a valuable therapeutic target for adult patients with primary open angle glaucoma, a significantly larger group then TEK-associated PCG.