Article: Single gaze gestures

This article contains ideas, which might be relevant for my Gaze-Gestures Web-Browing feature:
ACM Link

Emilie Mollenbach, Martin Lillholm et al. 2010 – Single gaze gestures

Abstract:

This paper examines gaze gestures and their applicability as a
generic selection method for gaze-only controlled interfaces.
The method explored here is the Single Gaze Gesture (SGG), i.e.
gestures consisting of a single point-to-point eye movement.
Horizontal and vertical, long and short SGGs were evaluated on
two eye tracking devices (Tobii/QuickGlance (QG)). The main
findings show that there is a significant difference in selection
times between long and short SGGs, between vertical and horizontal
selections, as well as between the different tracking systems.

The article discusses various projects, which also use gaze gestures or something similar. Among them is text input through gestures, i.e. letters are created or selected by gestures.

Problem with gestures:

Cognitively it may be difficult to remember a large number of gestures and physiologically it may be difficult to create and complete them [Porta et al. 2008].

Goal of the evaluation:

This experiment was designed to explore the following three hypotheses. Firstly, does frame-rate and automatic smoothing on eye trackers have an effect on either the selection completion time or the selection error rate? - Secondly, is there a difference in completing selection saccades in different directions, i.e. horizontal and vertical? – And thirdly, is there a difference in the completion times of gestures depending on various lengths of the eye movements across a screen?

Having read the article once, it is not quite clear to me what the authors mean with "gaze gestures"
Do they have the same in mind as i do??