Case Reports
doi: 10.1016/s0161-6420(89)32800-4.
Rod-cone dystrophy associated with a rod system electroretinogram obtained under photopic conditions
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- PMID: 2787013
- DOI: 10.1016/s0161-6420(89)32800-4
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Case Reports
Rod-cone dystrophy associated with a rod system electroretinogram obtained under photopic conditions
Ophthalmology.
1989 Jun.
Abstract
A 14-year-old girl with a history of night blindness and poor visual acuity was examined. Cystic-appearing lesions were apparent in the fovea, and pigmentary changes were observed in the midperipheral retina. Electroretinograms (ERGs) recorded from the dark- and light-adapted eye were similar in waveform, implicit time, and approximate amplitude. Results of examination of the spectral characteristics of the light-adapted ERG demonstrated that the recordings represented activity of the rod system, despite the presence of a background field, which eliminates the response of the rod system in normal subjects.
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