A portable, battery-powered electrophysiology platform delivers objective measurements of retinal function and visual pathways through electroretinography and visual evoked potentials, operable in both dilated and undilated patients and suitable for humans and animals, with ISCEV-compliance and a streamlined workflow. Key capabilities include multiple testing modalities such as full-field ERG, pattern ERG, multifocal ERG, and VEP, real-time waveform analysis with skin electrodes, rapid, objective data to aid diagnosis and monitor disease progression, support treatment decisions, and enable research across clinical, academic, and veterinary settings.