"Cameron is a superstar," Greenem said.
"It is not unusual to find Cameron off in a corner reading to someone, wheeling a student into class or wherever they need to go, laughing, talking, and playing with them too.
"He has shown them to not be afraid, and to treat everyone equally."
Fred Hollows Foundation New Zealand's chief executive, Dr Audrey Aumua, said the students who received the awards had shown compassion, initiative, and courage to take action.
"Fred championed the right of all people to have high quality and affordable eye care and he spent his life standing up for that right," Aumua said.
"There are so many young New Zealanders stepping up to support their fellow students and communities and it is wonderful to recognise and encourage that."