Fig. 5

Fluorescein fundus angiography examination of the patient in family 21 showed prolonged filling time of bilateral arteriovenous fluorescence. In the early stage, inhomogeneous strong fluorescence and occluded fluorescence was seen in the posterior pole of both eyes. Strong fluorescence and inhomogeneous fluorescence was also seen in the periphery. In the late stage, inhomogeneous strong fluorescence was seen in the periphery of both eyes, and no obvious fluorescence leakage was observed.OCT examination showed a split nerve cortex in the macular area of the left eye, the fovea in the macular area were not seen, and the pigmented epithelium was rough; the fovea in the macular area of the right eye were not obvious, the pigmented epithelium in the macular area was rough, and the nasal retinal layer was split