A clinic with one doctor could treat up to 200 children a week, Dr Mora said.
"The key thing about working in paediatrics is you're making a difference that's going to last a lifetime. Taking a child that would potentially not have sight and giving them sight is more important in places like that because support services are pretty limited."
Dr Mora, who has worked at Auckland Eye for 17 years, said each doctor will spend a week in the country in a "teach a man to fish, and feed him for a lifetime" approach.
"By helping the local surgeons to set up a service focused on children's eye health, we will leave a long-term legacy which could improve the daily lives of thousands of children.
"The lack of the right eye care equipment and knowledge in highly-populated poorer countries means that over half of the world's blind live in the Asia-Pacific region. In preventable cases, this means that an eye problem has not been diagnosed at its infancy."
By establishing a group of core professionals who specialise in paediatrics these impairments, he said, can be tackled before they infiltrate into individuals' adult lives.
Dr Mora leaves for Cambodia on June 29.