Objective: To investigate clinical characteristics of choroid in different stages of retinitis pigmentosa. Methods: The characteristics of fundus, visual conditions and characters of choroid of 226 cases (452 eyes) patients
with retinitis pigmentosa in No. 2 People’s Hospital of Yunnan Province from Jan.2000 to Apr.2015 were
retrospectively analyzed. Results: Fundus fluorescein angiography of 31 cases (62 eyes) before early stage showed: arterial choroidal and retinal vascular filling normal, filling delay or defect phenomenon does not be observed.
Fundus fluorescein angiography 25 cases (50 eyes) patients in early disease showed: preliminary choroidal
artery background fluorescence was displayed, at the same time, part of the choriocapillaris was not filling, the
filling was completed in arterial stage. Fundus fluorescein angiography of 106 cases (112 eyes) patients in the
medium-stage showed: arterial phase appears part choriocapillaris atrophy area, thick choroidal vessels can be
seen, with the progress angiography procedure, filling was not be observed in this area, which presents permanent
choriocapillaris filling defect. Fluorescein angiography of 64 cases (128 eyes) in patients in advanced stage showed
widespread choriocapillaris atrophy area, during which thick choroidal vessels remaining filling defect in late stage,
atrophic area with a contrast edge high fluorescence performance. Conclusion: Fluorescein angiography can show
choroidal atrophy changes, it can be used as an indicator to assess the progression of retinal changes in patients
with retinitis pigmentosa.