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Non-vasogenic cystoid maculopathy in autosomal recessive bestrophinopathy: novel insights from NIR-FAF and OCTA imaging

Ophthalmic Genetics, 2023, Vol.ahead-of-print (ahead-of-print), p.1-7

2023 The Author(s). Published with license by Taylor & Francis Group, LLC. 2023 ;ISSN: 1381-6810 ;EISSN: 1744-5094 ;DOI: 10.1080/13816810.2023.2191711

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  • Title:
    Non-vasogenic cystoid maculopathy in autosomal recessive bestrophinopathy: novel insights from NIR-FAF and OCTA imaging
  • Author: Bianco, Lorenzo ; Arrigo, Alessandro ; Antropoli, Alessio ; Saladino, Andrea ; Aragona, Emanuela ; Bandello, Francesco ; Parodi, Maurizio Battaglia
  • Subjects: autosomal recessive bestrophinopathy ; Best disease ; BEST1 ; choriocapillaris ; cystoid macular edema ; near-infrared autofluorescence ; non-vasogenic cystoid maculopathy ; OCT angiography
  • Is Part Of: Ophthalmic Genetics, 2023, Vol.ahead-of-print (ahead-of-print), p.1-7
  • Description: Autosomal Recessive Bestrophinopathy (ARB) is an inherited retinal disease caused by biallelic mutations in the BEST1 gene. Herein, we report the multimodal imaging findings of ARB presenting with cystoid maculopathy and investigate the short-term response to combined systemic and topical carbonic anhydrase inhibitors (CAIs). An observational, prospective, case series on two siblings affected by ARB is presented. Patients underwent genetic testing and optical coherence tomography (OCT), blue-light fundus autofluorescence (BL-FAF), near-infrared fundus autofluorescence (NIR-FAF), fluorescein angiography (FA), MultiColor imaging, and OCT angiography (OCTA). Two male siblings, aged 22 and 16, affected by ARB resulting from c.598C>T, p.(Arg200*) and c.728C>A, p.(Ala243Glu) BEST1 compound heterozygous variants, presented with bilateral multifocal yellowish pigment deposits scattered through the posterior pole that corresponded to hyperautofluorescent deposits on BL-FAF. Vice versa, NIR-FAF mainly disclosed wide hypoautofluorescent areas in the macula. A cystoid maculopathy and shallow subretinal fluid were evident on structural OCT, albeit without evidence of dye leakage or pooling on FA. OCTA demonstrated disruption of the choriocapillaris throughout the posterior pole and sparing of intraretinal capillary plexuses. Six months of combined therapy with oral acetazolamide and topical brinzolamide resulted in limited clinical benefit. We reported two siblings affected by ARB, presenting as non-vasogenic cystoid maculopathy. Prominent alteration of NIR-FAF signal and concomitant choriocapillaris rarefaction on OCTA were noted in the macula. The limited short-term response to combined systemic and topical CAIs might be explained by the impairment of the RPE-CC complex.
  • Publisher: Taylor & Francis
  • Language: English
  • Identifier: ISSN: 1381-6810
    EISSN: 1744-5094
    DOI: 10.1080/13816810.2023.2191711
  • Source: Taylor & Francis (Open access)
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