Fig. 5

Finite element analysis of the soft optoelectronic device and the eye model. a Maximum in-plane principle strain distribution in the soft optoelectronic device (top) and the circular device (bottom). b The reddish out-of-contact part of the soft optoelectronic device (top) and the circular device (bottom). c Maximum in-plane principle strain distribution in the eye models attached by the soft optoelectronic device (top) and the circular device (bottom). d Deformed shape of the eye model attached by the soft optoelectronic device (top) and the circular device (bottom) obtained by the FEA