Optical Coherence Tomography Angiography Analysis of Retinal and Choroidal Vascular Networks during Acute, Relapsing, and Quiescent Stages of Macular Toxoplasma Retinochoroiditis

Figure 2

(a–f) Nonactive toxoplasmic atrophic scar in a 49-year-old woman with an inactive congenital toxoplasmic macular scar, with a best-corrected visual acuity (BCVA) of 20/100. Color retinophotography (a) shows a large atrophic macular scar with a peripheral superior satellite scar. Enhanced-depth imaging (EDI) optical coherence tomography (OCT) (b) shows disorganization and condensation of the retinal layers’ reflectivity due to scar formation and atrophy, associated with an enhanced visualization of a submacular pachychoroid. Optical coherence tomography angiography (OCTA (c–f)) shows disappearance of retinal capillaries in the area of this atrophic retinal scar; but the extension of capillary loss appears to be wider in the parafoveal superficial capillary plexus (pSCP (c)) than the parafoveal deep capillary plexus (pDCP (d)). Moreover, a partial restoration of the previously nonperfused choroidal areas could be seen by reappearance of central thin capillaries at the level of the CC (e) and denser and larger vessels deeper in the choroid (f).

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