Indocyanine green angiograpiiic findings in punctate innhr choroidopathy of high myopic eyes
Journal
Investigative Ophthalmology and Visual Science
Journal Volume
38
Journal Issue
4
Date Issued
1997-12-01
Author(s)
YUNG-FENG SHIH
Abstract
Purpose. Punctate inner choroidopathy (PIC), which is reported lo be associated with nnopiu, has become a significant cause of visual disturbances in Taiwan. We tried to evaluate the relationship between PIC and myopia as well as to study the behavior of the symptomatic lesions in these PIC eyes by using indocyaninc green videoangio-graph) (ICGV). Methods. From July 1988 to November 1996, 1450 myopic patients in our High Myopic clinic were screened for PIC. Some of the patients complained blurred vision, flickering lights, and paracentral scotomas. Visual acuity decreased if new symptomatic lesions involved the fovea. ICGV and fluorescent angiography (FA) was performed for symptomatic lesions in these PIC eyes. Results. Totally 113 PIC patients out of 1450 myopic patients were diagnosed as PIC (7.8%). The refractive errors ranged from -4.25 D to -17.5U D (-8.62 ±3.56 D). The axial length ranged from 25.82 mm to 31.24 mm (27.35 ±4-31 mm). 1CG hot spots were found in the symptomatic lesions of these PIC eyes, although negative Unding in FA. I'he ICG hot spots may represent retinal pigment epithelium or choroid inflammation, mild serous detachment, or occult neovascularization. Low dosage steroid treatment was found to be effective in alleviating the symptoms, and the ICG hot spots disappeared after the steroid treatment. Conclusions. The incidence of PIC is high and mostly found in moderate and high myopia in Taiwan. ICGV is a good tool in screening PIC patients for further steroid treatment to prevent active inflammation or neovascularization especially when new lesions appear at the fovea.
Type
journal article