Fabrication of retina model having photoelastic pressure sensor for vitreoretinal surgery simulator

We proposed sensor-integrated retina model with similar Young's modulus to human retina for training of ophthalmologist. Mimic of mechanical properties of human retina is important issue for surgical simulator. Moreover, integration of sensor into surgical model is useful for evaluation of surgeon skill. First, we fabricate eye ball model having retina and scleral with similar Young's modulus to human by adjusting the concentration of catalyst. Then, photoelastic constant of retinal model is increased by adding the carbon nanotube. As a demonstration, pressure distribution on retinal model was measured using the assembled retina and sclera model in skull model using photoelastic pressure measurement.