Abstract
Purpose of the Review The clinical management of glaucoma is currently focused on manifest stages of the diseases at which there are congruent losses of visual function and optic nerve tissue. Identification of patients at risk of developing glaucoma remains a challenge. Detection of retinal ganglion cell dysfunction in glaucoma suspects may represent a way of identifying patients at high-risk glaucoma and thus provide both a rationale and a target for treatment to change the natural history of the disease. This report provides a review of the current applications of the pattern electroretinogram (PERG) to investigate electrical responsiveness of retinal ganglion cells in early glaucoma.
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