On examination, the patient's visual acuity was 20/20 OD and 20/60 OS. No afferent pupillary defect was seen. Intraocular pressures were 14 mmHg OD and 15 mmHg OS. No colour deficit on Ishihara plates was found. Examinations of anterior segments, optic discs and maculae were normal (Fig. 2B). Repeat VF testing and FA findings were similar to those obtained previously (Fig. 2A, C). Scotopic and photopic electroretinography (ERG) revealed suppressed and delayed pho-toreceptor responses, suggestive of widespread outer retinal disease that is unexpected in glaucoma (Fig. 2D).
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