Disrupted functional topology of the white matter connectome in rhegmatogenous retinal detachment: insights from...

Rhegmatogenous retinal detachment (RRD) is known to induce functional alterations in the gray matter regions associated with vision. However, the impact of RRD on the white matter (WM) connectome remains largely unexplored.

We applied graph theory to evaluate the functional network topology of the WM connectome in RRD patients. A support vector machine (SVM) classifier, combined with SHapley Additive exPlanations (SHAP), was then employed to distinguish RRD patients from healthy controls (HCs) and to identify key brain regions driving model predictions.

Compared to HCs, RRD patients exhibited significant disruptions in both global and nodal network topology. Network-based statistics identified 23 subnetworks with altered connectivity. Notably, the integration of SVM and SHAP analyses revealed that betweenness centrality (Bc) was the most discriminative topological feature, achieving an area under the curve of 0.9211.

These findings suggest that RRD disrupts critical hubs within the central visual and higher-order cognitive networks, leading to characteristic network reorganization. Moreover, Bc shows promise as an early neuroimaging biomarker for RRD. Overall, our results advance the understanding of neuroadaptive changes in RRD and support the clinical application of network topological metrics in early diagnosis.