Proton radiotherapy is an effective treatment modality for ocular cancer patients with choroidal melanoma. In 2011 a proton radiotherapy facility at the Institute of Nuclear Physics Polish Academy of Sciences was commissioned and went into clinical operation. By the end of the year 2015, a total of 128 ocular patients of the University Hospital in Kraków were irradiated at this facility, of whom 113 were treated under contract from the National Health Fund.