Alterations in Parafoveal and Optic Disc Vessel Densities in Patients with Obstructive Sleep Apnea Syndrome

Figure 1

Peripapillary coherence tomography-angiography images: (a) control; (b) mild OSAS; (c) moderate OSAS; and (d) severe OSAS.

(a)

(b)

(c)

(d)