The wide field multifocal electroretinogram reveals retinal dysfunction in early retinitis pigmentosa
نویسندگان
چکیده
منابع مشابه
Correlation between optical coherence tomography and multifocal electroretinogram findings with visual acuity in retinitis pigmentosa
INTRODUCTION Our purpose was to study the correlation between the macular morphology and function in eyes with retinitis pigmentosa (RP). METHODS Sixty-six eyes from 33 patients with RP and with different visual acuity (VA) were studied using optical coherence tomography (OCT) and multifocal electroretinogram (mfERG). Correlation analysis was performed between VA, macular thickness, mfERG amp...
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PURPOSE To identify local retinal abnormalities in diabetic patients with and without retinopathy, by using the multifocal electroretinogram (M-ERG). METHODS Electroretinograms were recorded at 103 discrete retinal locations in each eye of eight persons with nonproliferative diabetic retinopathy (NPDR) and eight diabetic persons without retinopathy, using VERIS (EDI, San Mateo, CA). The ampli...
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The cone electroretinogram has been examined at different levels of ganzfeld adaptation in normals and subjects with retinitis pigmentosa (RP). As light adaptation increases, the amplitude and time course (measured as b-wave implicit time) of the cone ERG decrease in both normal and RP subjects. The same level of light adaptation, however, decreases the amplitude and the implicit time more in n...
متن کاملRetinitis pigmentosa and retinal oedema.
Twenty-five patients with retinitis pigmentosa and retinal leakage were investigated. Oedema was present in dominant and X-linked inherited disease and is likely to be present in recessive disease as well. We suggest that this might be a general response seen in many types of tapeto-retinal degeneration to actively degenerating photoreceptors or pigment epithelium.
متن کاملThe relationship between visual field size and electroretinogram amplitude in retinitis pigmentosa.
PURPOSE To determine to what degree visual field size is correlated with electroretinogram (ERG) amplitude among patients with the common forms of retinitis pigmentosa (RP). METHODS Visual field equivalent diameter to the V4e white test light of the Goldmann perimeter was correlated with log ERG amplitude elicited by 0.5 Hz or 30 Hz full-field flashes of white light. Primary analyses were con...
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ژورنال
عنوان ژورنال: British Journal of Ophthalmology
سال: 2002
ISSN: 0007-1161
DOI: 10.1136/bjo.86.4.480