Retinoblastoma is the most common primary intraocular cancer in children, accounting for 12 percent of all infantile cancers each year. There’s a high cure rate – of between 95 and 98 percent – and therapies include laser thermotherapy, cryotherapy, radioactive plaques, external beam radiotherapy, chemotherapy, and ultimately, enucleation. Sadly, radiotherapy and chemotherapeutic approaches can lead to treatment-related secondary cancers, so there’s certainly a need for a new approach that avoids those risks.