• Electroretinograms of 11 healthy eyes were recorded on two occasions. Four different electrodes were used, and the B-wave amplitudes were compared. The Lovac contact lens electrode produced higher amplitudes than did the ERG-Jet lens electrode or the Burian-Allen lens electrode. The gold foil electrode gave the lowest amplitudes, but was superior in comfort.
Gjötterberg M. Electrodes for ElectroretinographyA Comparison of Four Different Types. Arch Ophthalmol. 1986;104(4):569–570. doi:10.1001/archopht.1986.01050160125027
* * SCHEDULED MAINTENANCE * *
The JAMA Network Sites will be conducting routine maintenance from 10/20/2017 through 10/21/2017. During this window access to content and authentication may be intermittently available. The JAMA Store will be completely unavailable during the maintenance window.