Impaired Capillary Perfusion in Deep Retinal Layer and in Choriocapillaris in Foveomacular Retinoschisis (OCT, Triton-OCTA, Colour Photography Posterior Pole)
Retina -> Aquired Macular DiseasesPatient: 63 years of age, female, BCVA 0,63 at OD, 0.8 at OS, IOP 15/17 mmHg.
Ocular Medical History: blur at OD.
General Medical History: arterial hypertension.
Main Complaint: asthenopia symptoms.
Purpose: to explore the structural features of retinoschisis using optical coherence tomography angiography (OCT-A), and to evaluate the characteristics of the perfusion of inner/outer retina, and choriocapillaris.
Methods: Colour Photography Posterior Pole, Triton OCT, Triton OCT-Angiography
Findings:
Colour Photography Posterior Pole: radial spoking around the fovea.
Triton OCT: revealing schisis predominantly in the outer plexiform layer (OPL) in the foveal region.
Triton OCT-Angiography, Deep Retinal Layer: impaired capillary perfusion in deep retinal layer, increased area of foveolar avascular zone.
Triton OCT-Angiography, Choriocapillaris: impaired capillary perfusion in choriocapillaris with focal drop outs.
Triton OCT-Angiography, Superficial Retinal Layer: mainly regular capillary perfusion in superficial retinal layer, regular foveolar avascular zone.
Discussion: Padrón-Pérez et al. (1) explored the structural features of juvenile X-linked retinoschisis (XLRS) using swept-source-optical coherence tomography and optical coherence tomography angiography (OCT-A). He found that BCVA was significantly correlated with defects in outer plexiform layer, external limiting membrane, and ellipsoid portion of inner segment.
Literature:
1. Padrón-Pérez N, Català-Mora J, Díaz J, Arias L, Prat J, Caminal JM. Swept-source and optical coherence tomography angiography in patients with X-linked retinoschisis. : Eye (Lond). 2018 Apr;32(4):707-715.
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