Eastern Orthodoxy and the Catholic Faith

My last blog requires some clarification.I was trying to argue that the Church deepens Her understanding of Doctrine frequently as a result of heresy.The Real Presence of Our Lord was denied.The Church responded by using the term Transubstantiation.As Newman noted the Church develops her understanding over time.One could argue that time has stood still in Eastern Orthodoxy-partly because of persecutions over the centuries.