Research Category: Photopic Negative Response (PhNR)

Significant improvement of ganglion cell complex in optical coherence tomography and photopic negative response in electroretinography after transsphenoidal resection of pituitary macroadenoma

Computer-Aided Discrimination of Glaucoma Patients from Healthy Subjects

Phenotypic Variation of Autosomal Recessive Leber Hereditary Optic Neuropathy (arLHON) in One Family

Photopic negative response recorded with RETeval system in eyes with optic nerve disorders

The purpose of this study was to determine whether PhNRs (Photopic negative response) recorded with the RETeval system and circumpapillary retinal nerve fiber layer thickness (cpRNFLT) are significantly correlated in eyes with optic nerve disorders. Patients with optic nerve disorders had significantly smaller PhNRs compared to the control subjects and the ROC analysis indicated that […]

Early Changes in Photopic Negative Response in Eyes with Glaucoma

In this study, the PhNR of the RETeval was compared following glaucoma filtration surgery in patients with and without choroidal detachment after surgery. A functional improvement of the ganglion cell function (PhNR measurement) was observed after surgery. The presence of choroidal detachment appears to arrest the improvement of the ganglion cell function and less improvement […]

A Comparison of the RETeval Sensor Strip and DTL Electrode for Recording the Photopic Negative Response

The PhNR/B ratio was the measure that minimized variability, and its measurements using a novel handheld ERG system with self-adhering skin electrodes and the protocols described in this study were comparable under different testing conditions and over multiple recordings.

Neurodegeneration in non‐proliferative diabetic retinopathy

Blue-on-Green Flash Induces Maximal Photopic

Timing of Changes in the Entropy

Photopic Negative Response Obtained