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Multimodal imaging of torpedo maculopathy including adaptive optics

DOI:10.1177/1120672119827772 期刊:European Journal of Ophthalmology 出版年份:2019 更新时间:2025-09-19 17:15:36
摘要: Purpose: The etiology of torpedo maculopathy remains unknown, but it has been recently suggested that it could represent a persistent defect in the development of the retinal pigment epithelium. As retinal pigment epithelium and photoreceptors form a functional unit, an alteration of photoreceptor distribution or function is predictable. The aim of this study is to describe multimodal imaging, including adaptive optics, in three cases of torpedo maculopathy, and discuss its pathogenesis. Methods: Multimodal imaging is presented, including fundus photographs, optical coherence tomography, adaptive optics, autofluorescence, fluorescein angiography, and ultra-widefield retinal imaging in three cases of torpedo maculopathy. Results: An oval-shaped well-delimited chorioretinal lesion both hypopigmented centrally and with a hyperpigmented border in the temporal macula, consistent with torpedo maculopathy, was observed in three patients. Optical coherence tomography showed a preservation of the inner retina, a mild atrophy of the outer retina, an alteration of the ellipsoid zone and of the retinal pigment epithelium layer, and a neurosensory detachment. These lesions were hypoautofluorescent with a hyperautofluorescent border. Fluorescein angiography showed a hyperfluorescence by window effect. Adaptive optics imaging showed an alteration of the cone mosaic within the lesions, with a lower cone density and a higher spacing between cones. Conclusion: The alteration of the cone mosaic suggested by adaptive optics in torpedo maculopathy has never been described and could be explained by the alteration of the retinal pigment epithelium. Our results support the existing hypothesis on the pathogenesis of torpedo maculopathy that a persistent defect in the development of the retinal pigment epithelium may be responsible for this clinical entity.
作者: Juliette Hugo,Marie Beylerian,Eric Denion,Aurore Aziz,Pierre Gascon,Danièle Denis,Frédéric Matonti
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The aim of this study is to describe multimodal imaging, including adaptive optics, in three cases of torpedo maculopathy, and discuss its pathogenesis.

The alteration of the cone mosaic observed with adaptive optics in torpedo maculopathy is a novel finding, supporting the hypothesis that a developmental defect in the retinal pigment epithelium underlies this condition. This enhances understanding of its pathogenesis and suggests that photoreceptor abnormalities are secondary to RPE defects. Future studies should include larger cohorts and functional assessments.

The study is limited by the small sample size of three cases, which may not be representative. Technical limitations include the small field of view in AO imaging requiring mosaic reconstruction, and potential artifacts from the Stiles-Crawford effect affecting cone mosaic interpretation. The cross-sectional design limits insights into disease progression.

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