Characteristics of retinitis pigmentosa in indocyanine green angiography
- VernacularTitle:视网膜色素变性的吲哚青绿血管造影特征
- Author:
Zhaoxia ZHAO
;
Xirang GUO
;
Yunsui LI
- Publication Type:Journal Article
- From:
Chinese Journal of Ocular Fundus Diseases
2001;17(1):26-29
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the characteristics of choroidal circulation in RP. Methods Using ICGA to observe 37 cases of RP and compare with healthy volunteers. Results ① The earliest fluores-cein filling time of the choroidal arteries in RP group was (14.38±3.95) seconds,the choroidal veinous in RP group was (17.27±5.94) seconds,and there was no obvious difference between RP and control group.②The fluorescein failing time of choroidal vein in RP group was (475.75±153.70)seconds.③The area of the bright fluorenscence in posterior fundus in RP group was (41.20±19.99) mm2,and compared with the control group,there was significant difference (P＜0.0001).④In the mid to late phase during ICGA，in RP group the veil-like hypofluorescence was found in 61 eyes (84.7%),plaque hyperfluorescence in posterior fundus in 21 eyes (29.2%),and leakage of heperfluorescence in 4 eyes(5.6%). Conclusion ①The perfusion pressure of choroidal vessels in RP reveals no change.②The blood volume of choroidal vessels becomes decreased in RP.③The choroidal capillaries become atrophic in RP.④Choroidal neovascularization may occur in patients with RP.
