{"cm":[{"date":"2019-01-21","left":"20","right":"25","both":"27"},{"date":"2021-02-17","left":"23","right":"36","both":"44"}],"snellen":[{"date":"2020-02-10","left":"20_25","right":"20_30"},{"date":"2021-02-17","left":"20_25","right":"20_30"}],"diopter":{"normalized":[{"left_sph":"-0.75","left_cyl":"-2.00","left_axis":"67","right_sph":"-0.75","right_cyl":"-1.50","right_axis":"110","date":"2019-06-11"}],"differential":[{"left_sph":"-0.25","left_cyl":"-1.50","left_axis":"60","right_sph":"-0.50","right_cyl":"-1.00","right_axis":"107","date":"2019-02-01"},{"left_sph":"0.00","left_cyl":"-1.25","left_axis":"","right_sph":"-0.25","right_cyl":"-0.75","right_axis":"","date":"2021-02-23"}]}}