Fig. 4From: Multifunctional flexible contact lens for eye health monitoring using inorganic magnetic oxide nanosheets Magnetic intensity analysis of the MCL. a Simulated image of eye movement in 9 directions (Direction V is the center point, and each direction is represented by a red dot). b The intersection function simulates the magnetic heat map of eye movement in different directions. c Repeatability test of magnetic induction intensity (n = 10) d Dynamic eyeball movement trajectory and e corresponding magnetic heat maps (starting from the center point V)Back to article page