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CASE REPORTS
JOURNAL ARTICLE
RESEARCH SUPPORT, NON-U.S. GOV'T
Multifocal electroretinographic evaluation of macular function in acute posterior multifocal placoid pigment epitheliopathy.
BACKGROUND: In acute posterior multifocal placoid pigment epitheliopathy (APMPPE), little is known about the long-term outcome of electroretinographic macular function. The purpose of this study was to report 2-year follow-up results of multifocal electroretinography (mfERG) in a 26-year-old Japanese woman diagnosed with APMPPE.
METHODS: Clinical and electrophysiological investigations of a single patient.
RESULTS: Best-corrected visual acuity at initial examination was 1.5 and 0.5 in her right and left eyes, respectively. In addition to characteristic fundus lesions bilaterally, fluorescein angiography demonstrated diagnostic early blockage and late staining of the lesions. Optical coherence tomography revealed a hyperreflective spot (corresponding to the lesion) in the outer retinal layer in the right eye and intraretinal fluid in the left eye. On mfERG, the amplitudes were generally preserved, but markedly reduced amplitudes were detected in the central region of the left eye and in the paracentral region of the right eye. Five days later, visual acuity improved to 1.0, and the intraretinal fluid spontaneously disappeared without medication in the left eye. Light-to-dark ratios on electrooculography were 2.68 and 2.23 in the right and left eyes, respectively, both within the normal range. Two years later, visual acuity was 2.0 in both eyes, and ophthalmoscopically, there were neither retinal nor retinal pigment epithelial (RPE) abnormalities. mfERG revealed that the amplitudes were considerably improved (nearly normal level) in both eyes.
CONCLUSIONS: The outcome suggests that longitudinal macular function in both visual acuity and mfERG may be favorable, unless areas of retinal or RPE alteration remain.
METHODS: Clinical and electrophysiological investigations of a single patient.
RESULTS: Best-corrected visual acuity at initial examination was 1.5 and 0.5 in her right and left eyes, respectively. In addition to characteristic fundus lesions bilaterally, fluorescein angiography demonstrated diagnostic early blockage and late staining of the lesions. Optical coherence tomography revealed a hyperreflective spot (corresponding to the lesion) in the outer retinal layer in the right eye and intraretinal fluid in the left eye. On mfERG, the amplitudes were generally preserved, but markedly reduced amplitudes were detected in the central region of the left eye and in the paracentral region of the right eye. Five days later, visual acuity improved to 1.0, and the intraretinal fluid spontaneously disappeared without medication in the left eye. Light-to-dark ratios on electrooculography were 2.68 and 2.23 in the right and left eyes, respectively, both within the normal range. Two years later, visual acuity was 2.0 in both eyes, and ophthalmoscopically, there were neither retinal nor retinal pigment epithelial (RPE) abnormalities. mfERG revealed that the amplitudes were considerably improved (nearly normal level) in both eyes.
CONCLUSIONS: The outcome suggests that longitudinal macular function in both visual acuity and mfERG may be favorable, unless areas of retinal or RPE alteration remain.
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