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Unilateral choroidal excavation in the macula detected by spectral‐domain optical coherence tomography
Author(s) -
Wakabayashi Yuka,
Nishimura Akira,
Higashide Tomomi,
Ijiri Shigeyuki,
Sugiyama Kazuhisa
Publication year - 2010
Publication title -
acta ophthalmologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.534
H-Index - 87
eISSN - 1755-3768
pISSN - 1755-375X
DOI - 10.1111/j.1755-3768.2010.01895.x
Subject(s) - external limiting membrane , metamorphopsia , medicine , optical coherence tomography , retinal pigment epithelium , ophthalmology , retinal , foveal , visual acuity , lesion , retina , fluorescein angiography , pathology , optics , physics
. Purpose: To report clinical findings of three patients with unilateral peculiar choroidal excavation in the macula detected by spectral‐domain (SD) optical coherence tomography (OCT). Methods: Three cases with unilateral choroidal excavation in the macula detected by SD OCT. Fluorescein angiography (FA), indocyanine green angiography (IA), ultrasonography, visual field tests and multifocal electroretinography (mfERG) were performed. Results: Although all three patients complained of metamorphopsia, visual acuity and central visual field were normal in the affected eyes. SD OCT demonstrated choroidal excavation in the macula despite a normal foveal contour along the inner retinal surface. The excavation involved the outer retinal layers up to the external limiting membrane in cases 1 and 2, while only the retinal pigment epithelium was involved in case 3. The excavation corresponded to foveal pigment mottling in cases 1 and 2 and to a parafoveal yellowish fusiform lesion in case 3. The lesions appeared hypoautofluorescent and unremarkable in FA except for circumferential hyperfluorescence in case 3 and hypofluorescent in IA. B‐scan ultrasonography was unremarkable. MfERG in cases 1 and 2 was normal. Conclusions: SD OCT demonstrated two types of choroidal excavation in the macula. More case accumulation and a longer follow‐up will elucidate the pathogenesis and prognosis of the lesions.