Multifocal ERG and OCT in unexplained visual loss
| Autor: | M Monteiro-Grillo, F Pinto, A. C Ferreira, V Nogueira, A Bastos, A. Castanheira-Dinis, I. Cravo, F. Campos, M. Novais |
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| Rok vydání: | 2008 |
| Předmět: |
medicine.medical_specialty
Pathology genetic structures medicine.diagnostic_test business.industry Multifocal ERG General Medicine Fluorescein angiography eye diseases Brain ct Ophthalmoscopy Ophthalmology Optical coherence tomography medicine Unexplained visual loss sense organs Visual dysfunction business Erg |
| Zdroj: | Acta Ophthalmologica. 86 |
| ISSN: | 1755-375X |
| DOI: | 10.1111/j.1755-3768.2008.437.x |
| Popis: | Purpose To determine the value of multifocal ERG (mfERG) and optical coherence tomography (OCT) in the evaluation of patients with unexplained visual loss. Methods mfERG and macular OCT were obtained from six patients with unexplained visual loss (normal ophthalmoscopy, fluorescein angiography, full-field ERG and brain CT scan) and four age and sex matched controls. Results Patients BCVA ranged from 20/32 to 20/125. When comparing to controls, patients showed significantly depressed mfERG amplitudes in rings R1 (121.7 vs 64.8; p 0.01) and R2 (42.6 vs 19.5; p 0.02). Foveal thickness, as measured by macular OCT, was also reduced, although not significantly (p 0.1). Conclusion Multifocal ERG allowed localization of the visual dysfunction to the central macula, in cases with hitherto unexplained visual loss. |
| Databáze: | OpenAIRE |
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