Abstract
We recorded the pattern electroretinogram (PERG) to small (0.8°) and very large (15°) check sizes in normal subjects, in patients with early-stage glaucoma, and in patients with ocular hypertension. In glaucoma, the PERG amplitude was reduced. This reduction was more prominent for a check size of 0.8° as compared with 15° stimuli and for high (16/s) as compared with low (7.8/s) reversal rates. Using a discriminant analysis of the amplitudes for two different check sizes, we could distinguish the normal and the glaucoma groups with a specificity of 96% and a sensitivity of 91%. Of the ocular hypertension patients, 43% were classified as pathologic by the discriminant analysis. Thus multivariate analysis of the PERG may increase its diagnostic value.
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Bach, M., Speidel-Fiaux, A. Pattern electroretinogram in glaucoma and ocular hypertension. Doc Ophthalmol 73, 173–181 (1989). https://doi.org/10.1007/BF00155035
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DOI: https://doi.org/10.1007/BF00155035