As founder of the Facial Restoration Center at the University of Arkansas for Medical Sciences, ocularist L. Daniel Eaton works with patients who have been disfigured by disease or trauma. For these people, the lifelike facial prostheses Eaton creates — noses, eyes, eyelids with lashes, skin — often not only restore their appearance but also give back their self-esteem and strengthen their emotional health. One such patient, who was also a breast cancer survivor, asked Eaton why doctors couldn’t work the same way to craft a post-mastectomy prosthesis. Her question led to a decade of conversations and input from other survivors, and resulted in Eaton’s development of a lightweight custom breast prosthesis. “Our initial research started with survivors,” Eaton says, noting that ContourMed, the company...