Electroretinography Device Demonstrates Safety, Strong Repeatability

An electroretinography device demonstrates safety and good repeatability.

A full-field electroretinography device with lid sensors possesses the ability to safely and effectively evaluate visual pathway structure and functioning, according to a poster presented at the 2023 Southeastern Educational Congress of Optometry (SECO) meeting in Atlanta from March 1 to 5. The device demonstrates similar photopic negative response (PhNR) latency to a portable electroretinography device and greater repeatability, the poster states.   

The research team, led by Nathan Lighthizer, OD, of Northeastern State University  Oklahoma college of optometry, included 21 participants with no reported ocular pathologies (eyes, 40; 65% women; mean age, 29.05 years) in an open label, prospective, single site investigation to evaluate the safety and technical parameters of 2 electroretinography devices. The team compared PhNR and FL latency and examined repeatability between the 2 devices.

The PhNR latency between both devices was comparable (74.8 vs 74.1 milliseconds), according to the poster. The 2 devices exhibited a strong correlation with each other (correlation coefficient: 0.75), but lower coefficient of variation values for the full-field, office-based device showed that it had better repeatability compared with the portable device (1.335 vs 5.752).

No adverse events for either device were noted.


Lighthizer N. Emmer M. Croissant C. Tedford S. Tedford C. Objective evaluation of the Diopsys NOVA and LKC RETeval electroretinogram device electrode arrays. Poster presented at: Southeastern Educational Congress of Optometry 2023 annual meeting; March 1 to 5, 2023; Atlanta, GA.