In 1987 Ian and his wife moved to England so that he could pursue his doctoral studies. He completed his PhD in mathematics in 1990 and returned to New Zealand in 1994, settling in Auckland. In 1998 the Nield family moved back to Lower Hutt.
By 1998 it had become painfully obvious that Ian could no longer call the Anglican Church his ecclesial home. After a period of instruction the whole family was received into the Orthodox Church on Palm Sunday([[April 4]]), 1999.
Dr Nield was asked on several occasions by Metropolitan Archbishop [[Paul (Saliba) of Australia and New Zealand|Paul Saliba]] to take up ordained ministry. In late 2002, Ian recognised this calling and accepted His Eminence's request that he be the priest to the mission in Wellington. Consequently he was ordained to the [[deacon|diaconate]] and the [[priest]]hood in January 2003, and serves as head of mission in Wellington. Fr Ian serves Eastern rite in Wellington and [[Western Rite]] in Lower Hutt on alternating weeks.