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A representative case (No:6) demonstrates minimal response ERG; despite increasing dark adaptation from 5 minutes to 10 and 25 minutes and use of a high intensity stimulus, no significant electroretinographic amplitude could be recorded before silicone oil removal. ERG in the same patient 10 days after silicone oil removal demonstrates a significant increase in both a- and b-wave amplitudes with the use of a high-intensity stimulus and progressive dark adaptation.
