Birtel J, Gliem M, Herrmann P, MacLaren RE, Bolz HJ, Charbel Issa P. Peripapillary Sparing in Autosomal Recessive Bestrophinopathy.
Ophthalmol Retina 2020;
4:523-529. [PMID:
32147488 DOI:
10.1016/j.oret.2019.12.008]
[Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 11/25/2019] [Accepted: 12/05/2019] [Indexed: 01/05/2023]
Abstract
PURPOSE
To demonstrate that peripapillary sparing on autofluorescence images is a characteristic feature of autosomal recessive bestrophinopathy (ARB).
DESIGN
Retrospective, cross-sectional case series and review of previous published cases.
PARTICIPANTS
Twelve patients with ARB.
METHODS
Ophthalmic assessment included best-corrected visual acuity testing, electrophysiologic examinations, and multimodal retinal imaging. Retinal imaging included OCT, blue-light autofluorescence imaging, fundus photography, and widefield pseudocolor and autofluorescence fundus imaging.
MAIN OUTCOME MEASURES
Presence of peripapillary sparing on fundus autofluorescence images.
RESULTS
Relatively normal-appearing peripapillary autofluorescence was identified in all patients, independent of the disease stage or presence of widespread changes on autofluorescence widefield images. OCT images of the peripapillary region revealed mild structural abnormalities, including a thinned outer nuclear layer and intraretinal or subretinal fluid. A review of previously published cases confirmed peripapillary sparing as consistent feature on fundus autofluorescence images. Genetic analysis revealed 10 previously reported mutations, 1 novel missense (c.83T>A; p.Ile28Asn) and 2 novel truncating (c.658C>T; p.Gln220* and c.1370C>G; p.Ser457*) variants in BEST1.
CONCLUSIONS
In ARB patients, peripapillary sparing is a consistent feature on fundus autofluorescence images, whereas the same region is less preserved on OCT images.
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