Abstract：
PURPOSE:Indocyanine green (ICG) dye is known to remain selectively in and around choroidal neovascularization (CNV) associated with age-related macular degeneration, and is thought to be cleared from the overlying retinal circulation without leakage. This is the basis of ICG dye-enhanced laser photocoagulation. The authors have observed, however, leakage of ICG dye into cystoid spaces within the retinal and have determined the incidence, clinical features, and angiographic characteristics of this newly described phenomenon. METHODS:The digital ICG videoangiograms of 149 consecutive patients with exudative age-related macular degeneration and occult CNV were reviewed independently to determine the characteristics of intraretinal ICG dye leakage. RESULTS:Of the 149 patients with occult CNV, 16 (11%) demonstrated intraretinal leakage of ICG dye between 14 and 34 minutes (median = 20 minutes). The clinical features most commonly associated with this phenomenon are: subretinal fluid (88%), subretinal hemorrhage (88%), subretinal lipid (63%), and retinal pigment epithelial detachment (56%). CONCLUSIONS:Indocyanine green dye may not be as concentrated in and around CNV as previously reported. The delayed onset of its appearance within intraretinal cystoid spaces may suggest a diffusible choroidal source of leakage. Intraretinal ICG dye may be a relative contraindication for ICG dye-enhanced laser photocoagulation.
journal_name
Ophthalmologyjournal_title
Ophthalmologyauthors
Ho AC,Yannuzzi LA,Guyer DR,Slakter JS,Sorenson JA,Orlock DAdoi
10.1016/s0161-6420(94)31323-6subject
Has Abstractpub_date
1994-03-01 00:00:00pages
534-41issue
3eissn
0161-6420issn
1549-4713pii
S0161-6420(94)31323-6journal_volume
101pub_type
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