preferred_name: Lens used for testing &#x7C; Eye &#x7C; Refraction
preferred_name_lc: lens used for testing &#x7c; eye &#x7c; refraction
label: Lens used for testing &#x7C; Eye &#x7C; Refraction
label_lc: lens used for testing &#x7c; eye &#x7c; refraction