Hybrid retinal stimulation device, operating method thereof, and recording medium

A hybrid retinal stimulation device, the device comprising:

• a glass substrate in which a through hole for providing electrical stimulation and optical stimulation to retinal cells is formed;
• a multi-channel stimulation electrode arranged in the through hole of the glass substrate and configured to provide the electrical stimulation to the retinal cells;
• a multi-channel recording electrode arranged in the through hole of the glass substrate to measure a neural response signal generated from the retinal cells while arranged at a position spaced apart by a determined distance from the multi-channel stimulation electrode;
• a micro light-emitting diode (LED) array arranged in a lower portion of the glass substrate and configured to provide the optical stimulation to the retinal cells from between the multi-channel stimulation electrode and the multi-channel recording electrode;
• and
• a controller configured to control synchronization between the electrical stimulation and the optical stimulation by independently controlling an operation of the multi-channel stimulation electrode and the micro LED array.