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24.02.2019 | Neuroophthalmology | Ausgabe 5/2019

Graefe's Archive for Clinical and Experimental Ophthalmology 5/2019

Peripapillary and macular morpho-vascular changes in patients with genetic or clinical diagnosis of autosomal dominant optic atrophy: a case-control study

Graefe's Archive for Clinical and Experimental Ophthalmology > Ausgabe 5/2019
Amélia Martins, Tiago M. Rodrigues, Mário Soares, Michael-John Dolan, Joaquim N. Murta, Rufino Silva, João P. Marques
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To evaluate the macular and peripapillary morpho-vascular changes in ADOA, using optical coherence tomography (OCT) and OCT angiography (OCTA).


Prospectively defined, cross-sectional case-control study. Consecutive patients with a genetic or clinical diagnosis of ADOA along with age- and sex-matched controls were included. The radial peripapillary capillary (RPC) density and vessel density (VD) in the parafoveal superficial and deep capillary plexuses (SCP and DCP, respectively) were evaluated with OCTA. The ganglion cell complex (GCC) and retinal nerve fiber layer (RNFL) thickness were determined using structural OCT. We applied a previously validated customized macro (Fiji, SciJava Consortium) to compute RPC density. The remaining parameters were calculated by the built-in software. Non-parametric methods were used for data analysis. The target α level was 0.05, which was adjusted through Bonferroni’s correction when multiple outcomes were tested.


Fifty-eight eyes (n = 29 control; n = 29 ADOA) from 30 subjects (mean age 42.43 ± 15.30 years; 37.93% male) were included. Parafoveal SCP VD, GCC thickness, RPC VD in the temporal quadrant, as well as RNFL thickness in the nasal and temporal quadrants were decreased in ADOA eyes (all p < 0.001). When only patients with genetically confirmed diagnosis were included, capillary dropout in the circumpapillary superior and inferior quadrants also became evident (both p < 0.001). The GCC/parafoveal SCP ratio was increased in ADOA, relatively to matched controls. In contrast, none of the circumpapillary morpho-vascular ratios was significantly different in ADOA eyes.


The microvascular and structural changes found in ADOA suggest that both the macular and peripapillary regions are involved, although the threshold for damage of the structural and vascular components may be different for each region. Larger series with longitudinal follow-up may validate OCTA biomarkers helpful for disease monitoring.

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