Indocyanine green videoangiography of occult choroidal neovascularization - A comparison of scanning laser ophthalmoscope with high-resolution digital fundus camera

Purpose: To compare the indocyanine green (ICG) angiographic findings of occult choroidal neovascularization (O-CNV) taken by scanning laser ophthalmoscope and high-resolution digital fundus camera. Methods: We examined 100 eyes of 100 consecutive patients with ICG angiographic evidence of CNV secondary to age-related macular degeneration. All patients were diagnosed with O-CNV based on fluorescein angiography. Indocyanine green videoangiography was carried out using the scanning laser ophthalmoscope and high-resolution digital fundus camera at the same session. Results: Indocyanine green videoangiography revealed well-defined vessel structure of the O-CNV in 28% of eyes examined by scanning laser ophthalmoscope and in 8% of eyes examined by digital fundus camera. Well-defined focal spots were demonstrated in 37% of eyes examined by scanning laser ophthalmoscope and in 52% of eyes examined by digital fundus camera. Plaques (well-defined) were found in 13% and 35% of eyes examined by scanning laser ophthalmoscope and digital fundus camera, respectively. Conclusion: Indocyanine green videoangiography with scanning laser ophthalmoscopy seems to be superior to the digital fundus camera in delineation of the vessel architecture of O-CNV. Focal spots and plaques are best detected by digital fundus camera.