Doctors and biomedical engineers who implant cells and tissues into patients to restore motion or eyesight have long been challenged by potential rejection of the implant by the patient’s own immune system.

Now, newly published data from USC has shown a stem-cell derived implant designed to improve vision for patients suffering from age-related macular degeneration — one of the most common forms of blindness in adults over 40 — can safely be inserted into the eye and without the need for long-term immunosuppressants.

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