High-density Multielectrode Array Recordings of Retinal Waves Using An Electrophysiology Platform
Rishikesh Kumar Gupta1, Natalie Clark1, Kaylee Yeager1
1Department of Biological Sciences, Vanderbilt University.
Journal of Visualized Experiments : Jove
|July 14, 2025
Summary
This protocol details using High-Density Multi-Electrode Arrays (HD-MEAs) to record retinal waves, crucial for visual system development. This method enables high-throughput electrophysiology for studying retinal ganglion cell activity.
Area of Science:
- Neuroscience
- Developmental Biology
- Ophthalmology
Background:
- Spontaneous retinal waves are vital for visual system development, guiding neural circuit maturation.
- Multielectrode arrays (MEAs) are essential for studying retinal ganglion cell (RGC) activity ex vivo.
- High-throughput data acquisition is key for understanding retinal development and disease.
Purpose of the Study:
- To provide a detailed protocol for preparing retinal tissue for electrophysiological recordings using High-Density MEAs (HD-MEAs).
- To enable simultaneous extracellular recordings from a large population of RGCs.
- To facilitate research into retinal development, disease, and comparative neuroscience.
Main Methods:
- Isolation of intact neonatal retinas under physiological conditions.
- Mounting retinas onto an HD-MEA chip with 26,400 electrodes.
- Acquisition of simultaneous extracellular recordings from over 1,000 RGCs for extended durations.
Main Results:
- Successful implementation of a protocol for HD-MEA recordings of retinal tissue.
- Demonstration of the capability to record from a large number of RGCs simultaneously.
- Establishment of a high-throughput method for studying retinal network activity.
Conclusions:
- This methodological approach is valuable for investigating retinal development and disease.
- HD-MEA electrophysiology provides a powerful tool for advancing neuroscience and vision research.
- The protocol supports cross-species comparative studies of retinal function.
