Zhang Y, Zhang S, Wu C, et al. - Given that the retinal microvasculature within the macula in glaucomatous eyes is unclear, researchers sought to detect macular vessel density (MVD) changes in primary angle closure glaucoma (PACG). Twenty-two PACG patients who had an episode of acute primary angle closure were involved. Structural optical coherence tomography scans were carried out to measure the thickness of the peripapillary retinal nerve fiber layer and macular ganglion cell complex (GCC). The macular microvascular network is attenuated after an acute angle closure attack, and the MVD declines significantly.