Catching Glaucoma In Its Early Stages

It's too early to be certain.

A new study at the University of Miami Miller School of Medicine has determined (inconclusively because more testing is needed) that a test known as a pattern electroretinogram measures the function of nerve cells in the retina and may detect glaucoma early enough to prevent or slow vision loss.

This non-invasive test can detect dysfunction and abnormal changes in retinal cells before they destroy the optic nerve.