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choroidal ischemia examination, choroidal ischemia diagnosis

choroidal ischemia examination, choroidal ischemia diagnosis

Common examination of choroidal ischemia

Choroidal ischemia examination

Laboratory examinations can be carried out for systemic diseases complicated by some cases.

Fluorescein fundus angiography showed irregular weak fluorescence at the lesion in the early acute stage, and persistent weak fluorescence and punctate fluorescence at the inflammatory lesion in the middle stage, which gradually increased and formed diffuse fluorescence. In the late stage, strong fluorescence appeared at the lesion, and the edge of the lesion was window-like defect fluorescence, and the lesion was patchy. Irregular distribution indicated choroidal filling defect. Due to the damage of choroidal-retinal barrier, fluorescein leaks out, resulting in strong fluorescence in the late stage. Strong fluorescence in the central part of the lesion showed active lesions, while window-like defect fluorescence showed inactive lesions at the edge. The early fluorescence of window-like defect was seen in depigmentation of late lesions, while the fluorescence of pigment blocking was seen in pigment proliferation.

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