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Presumed idiopathic outer lamellar defects of the fovea and chronic solar retinopathy. An OCT and Fundus autofluorescence study.
  1. Roberto dell'Omo (robertodellomo{at},
  2. Kalliroi Konstantopoulou (kalikonsta{at},
  3. Roger Wong (drrogerwong{at},
  4. Carlos E Pavesio (carlos.pavesio{at}
  1. Medical Retina Department, Moorfields Eye Hospital NHS Trust, United Kingdom
  2. Medical Retina Department, Moorfields Eye Hospital NHS Trust, United Kingdom
  3. Medical Retina Department, Moorfields Eye Hospital NHS Trust, United Kingdom
  4. Department of Medical Retina, Moorfields Eye Hospital NHS Trust, United Kingdom


    Aim: To examine fundus autofluorescence (FAF) findings in eyes with presumed idiopathic outer lamellar defects (OLD) at the fovea and to discuss their pathogenesis.

    Methods: Prospective observational case series of five eyes of four patients presenting with OLD at the fovea defined as discrete lesions of 50-100μm in size located at the level of the outer retina on biomicroscopy and imaged on optical coherence tomography (OCT) as cylindric, well demarcated interruption of both hyperreflective bands corresponding to the inner/outer segments junction of photoreceptors and to the complex retinal pigment epithelium-choriocapillaris; none of the enrolled patients had history positive for direct sungazing, welding-arc or sunbed exposure, whiplash injury, ocular trauma, macular oedema/detachment or evidence of vitreo-macular traction. The corresponding FAF images were evaluated.

    Results: In eyes with OLD the neuroretina in the foveal region appeared to be thinner in comparison to fellow, unaffected eyes. FAF revealed well demarcated, hypoautofluorescent areas (corresponding in location to the OLD observed clinically and on OCT), surrounded by an irregular halo of relatively increased autofluorescence in the context of the greater hypoautofluorescent macular region.

    Conclusion: Biomicroscopy, OCT and FAF findings of presumed idiopathic OLD of the fovea strongly resembles those observed in association to chronic solar retinopathy. In association to OCT, FAF might represent an useful tecnique to detect subtle solar-induced injuries of the retina.

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