(b) Angle closure

Disease staging	≥180° appositionally closed (where posterior TM not visible [grade 1])	Ocular hypertension and/or peripheral anterior synechiae	Ganglion cell, optic nerve, and visual field damage
PACS	+	−	−
PAC	+	+	−
PACG	+	+	+

PAC, primary angle closure; PACS, primary angle closure suspect; PACG, primary angle closure glaucoma.

The above definitions could be used to guide decisions regarding the target IOP range (i.e., for patients with more advanced disease and/or evidence of rapidly progressing disease, targeted IOP should be in the lower targeted range). To achieve this, patients may require a more aggressive therapy from initiation of therapy; see Figure 3, suggested range for initial target IOP, and Figure 5, proposed treatment algorithm.