The error of parablepsis (a looking by the side) is caused by homoeoteleuton (a similar ending of lines). Dittography is when a word or group of words is picked up a second time by the scribe and as a result the same line is copied twice when it only appears once.
The phrase "Great is Artemis of the Ephesians" appears twice in codex Vaticanus while it only appears once in other manuscripts.