PMC9762174_01
A: A well demarcated superior hemiretinal whitening and foveal sparing in the right eye. B: Normal fundus appearance of the left eye.
OC-12-20-g-001.jpg
PMC9762174_01_OC-12-20-g-001.jpg
F1
In fundus photography of the right eye, a well demarcated superior hemi-retinal whitening involving the superior half of the macula with foveal sparing was noted while fundus appearance was completely normal in the left eye (Figure 1 (Fig. 1)).
Fundus photography of the right optic nerve head showing separated emergence of the superior and inferior hemi-trunks of the central retinal artery. . A: superior hemi-trunk of the central retinal artery. B: inferior hemi-trunk of the central retinal artery.
OC-12-20-g-002.jpg
PMC9762174_01_OC-12-20-g-002.jpg
F2
On a more precise inspection of the optic nerve head of the right eye, two separately emerging superior and inferior arterial trunks were noted and no main trunk of the central retinal artery was detected anterior to lamina cribrosa (Figure 2 (Fig. 2)).
A: Fundus fluorescein angiography of the right eye displaying the earlier dye filling of the superior arterial hemi-trunk and its main branches in the choroidal phase. Dye appearance in inferior retinal arterial vasculature occurred a few seconds later in the arterial phase. B: Fluorescein filling of the left eye. No filling defect was detected in eyes.
OC-12-20-g-003.jpg
PMC9762174_01_OC-12-20-g-003.jpg
F3
No filling defects were detected in either eye (Figure 3 (Fig. 3)).
Vertical macular optical coherence tomography of the right eye; thickening and hyperreflectivity of the inner superior macula is a consequence of ischemia caused by superior hemi-central retinal artery occlusion.
OC-12-20-g-004.jpg
PMC9762174_01_OC-12-20-g-004.jpg
F4
Macular optical coherence tomography (OCT) showed increased reflectivity of the inner layers in the superior macula (Figure 4 (Fig. 4)).