Fig. 4

a The visual field examination of Case 2’s right eye demonstrates a defect in the upper part of the visual field. b, c The figures depict a solitary yellowish-white lesion under the optic disc that involved the optic disc, and the inferior margin of the lesion shows hyperplastic scalloped reticular margins of the retinal pigment epithelium and mild fibrosis (arrowhead). d, e Fundus autofluorescence of the patient’s right eye. Figure d shows reticular hypoautofluorescence at the inferior margin of the lesion (arrowhead), and small patches of hypoautofluorescence at the nasal side of the peripheral retina are observed in figure e (arrowhead). f, g Fundus fluorescence angiography shows reticular hyperfluorescence, inverted relative to the results of FAF, at the inferior margin of the lesion (fig. f arrowhead), and small patches of hyperfluorescence in the peripheral retina (fig. g arrowhead). h Indocyanine green angiography shows reticular hypofluorescence at the inferior margin of the lesion in the late stage, which was inverted compared with the results of FFA (arrowhead)