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  • Title: [A new mode of recording retinal activity: multifocal ERG].
    Author: Mack G, Dollfus H, Flament J, Mohand-Said S, Sahel J.
    Journal: J Fr Ophtalmol; 1999 Mar; 22(2):221-5. PubMed ID: 10327355.
    Abstract:
    Global ERG recordings are only modified in conditions with diffuse or extensive retinal involvement. The use, over the last 6 months, of a new functional testing device: VERIS (visual evoked response imaging system) allows accurate detection and quantification of localized retinal function defects. Our preliminary experience shows that a careful preparation of subjects, standardized testing protocols and a good understanding of the device technology, especially software parameters are mandatory. We report our results on a series of 28 normal volunteers, grouped by age and describe the various graphic presentation of data collected. This technology should allow accurate detection and quantification of retinal functional defects in patients with age related macular degeneration as well as evaluation of visual function in retinitis pigmentosa patients before and after photoreceptor transplantation.
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