Abstract
Aim
To analyse the alterations in retino-choroidal angioarchitecture in eyes with active tubercular serpiginous-like choroiditis (TB-SLC) using swept-source optical coherence tomography angiography (SS-OCTA).
Methods
This prospective cross-sectional study enrolled 34 eyes diagnosed with TB-SLC and 34 age-matched healthy controls. Data acquisition with SS-OCTA using the PLEX Elite 9000 (Carl Zeiss Meditec Inc., Dublin, CA, USA) with a 6 × 6 mm pattern centered on the foveal center was done. Automated retinal vessel length density (VLD) and perfusion density (PD) and foveal avascular zone architecture were obtained from the ARI hub. Choroidal vascularity index (CVI) and choriocapillaris flow deficits (CCFD) were obtained using Image J.
Results
Eyes with TB-SLC showed significantly reduced vessel indices in all retinal layers (P < 0.05), decreased CVI (P = 0.001) and increased CCFD (P = 0.001) as compared to healthy eyes. CCFD was increased significantly in the involved quadrants in eyes with TB-SLC when compared with the uninvolved quadrants and corresponding healthy quadrants in control subjects. CCFD showed a significant negative correlation with visual acuity (r = − 0.46, P = 0.006).
Conclusion
Eyes with TB-SLC manifest reduced VLD and PD, decreased CVI and increased CCFD. The CCFD alterations are non-uniform in these eyes, mainly located under the regions with disease activity.
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Magesan, K., Sachidanandam, R., Verma, A. et al. Retino-choroidal evaluation of the macular region in eyes with tubercular serpiginous-like choroiditis using swept-source optical coherence tomography angiography. Int Ophthalmol 42, 2651–2664 (2022). https://doi.org/10.1007/s10792-022-02254-0
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DOI: https://doi.org/10.1007/s10792-022-02254-0