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  • Title: Choroidal changes associated with reticular pseudodrusen.
    Author: Querques G, Querques L, Forte R, Massamba N, Coscas F, Souied EH.
    Journal: Invest Ophthalmol Vis Sci; 2012 Mar 09; 53(3):1258-63. PubMed ID: 22222508.
    Abstract:
    PURPOSE: To analyze choroidal changes associated with reticular pseudodrusen by indocyanine green angiography (ICGA) and enhanced depth imaging spectral-domain optical coherence tomography (EDI SD-OCT). METHODS: Twenty-two consecutive patients (22 eyes) with reticular pseudodrusen, and without medium/large drusen, underwent ICGA and EDI OCT. Twenty-one age- and sex-matched subjects (21 eyes) with early age-related macular degeneration (AMD), and without pseudodrusen, also underwent EDI OCT. RESULTS: Mean age of patients with reticular pseudodrusen and with early AMD was 82.5 ± 0.9 and 79.3 ± 4.4 years of age, respectively (P = 0.9), and 59.0% and 76.2% were females, respectively (P = 0.7). On ICGA, reticular patterns appeared as hypofluorescent, not overlying the large choroidal vessels. Areas of iso/hyperfluorescence on ICGA, occurring adjacently to reticular patterns, appeared on OCT as subretinal deposits. The mean subfoveal choroidal thickness was significantly reduced in the group with reticular pseudodrusen compared with that in the control group (174.6 ± 10.1 and +241.4 ± 16.5, respectively; P < 0.001). At all measurement points, but the 3000 μm superior to the fovea, the choroidal thickness of eyes with reticular pseudodrusen appeared thinner than that of the control group. Interestingly, the choroid of eyes with reticular pseudodrusen appeared thicker at 3000 μm superior to the fovea compared with that at all other measurement points. CONCLUSIONS: It was shown that the reticular patterns appeared as hypofluorescent lesions on ICGA, closely abutting, but not overlying the large choroidal vessels. In eyes with reticular pseudodrusen, EDI OCT revealed an overall thinned choroid.
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