?Based on cognitive science and brain science, EYAS is a digital cognitive rehabilitation training contents for each IT-based area to provide cognitive rehabilitation therapy and cognitive decline prevention for cognitive impairment and cognitive decline risk groups and an interlocking system to implement it.It is designed to provide the most suitable cognitive rehabilitation for users through cognitive rehabilitation contents for each of the six brain areas(Concentration, Memory, Orientation ability, Calculation ability, Visual Perception, Executive ability). As a core technology, Eye-Link System of EYAS is the world's first implementation of user gaze information and cognitive training system interlocking system and it has 7 related patents.A digital-based concentration training system with eye tracking and eye movement that improves cognitive function. The main models include EYAS Standard, EYAS Premium, EYAS Multi, EYAS VR, EYAS Standing (EYAS Premium Model: Registered as a medical device by the Ministry of Food and Drug Safety (No. 21-1110)).After training the contents, you can compare and analyze the intuitive training history through graphs to check the accumulated training performance result for each area, and print and save the training results.