Table 3.

Reliability criteria

Study	Sampling frequency	Cut-off frequency	Duration	Number of repetitions	Visual condition	Surface	Total
Recommended	~100 Hz	10 Hz	≥90 s	3–5	Eyes closed	Firm
Luoto et al. [20]	0	0	0	0	0	+	+
Mientjes and Frank [21]	0	0	Unclear	+	+	+	+++
Kuukkanen and Malkia [22]	Unclear	Unclear	0	0	+	+	++
Hamaoui et al. [23]	0	Unclear	0	0	0	+	++
Grimstone and Hodges [24]	0	Unclear	+	0	0	+	++
Brumagne et al. [25]	0	0	0	0	Unclear	+	+
Hamaoui et al. [26]	Unclear	Unclear	0	+	+	+	+++
Mok et al. [27]	+	+	0	0	+	+	++++
Smith et al. [28]	+	Unclear	+	0	+	+	++++
della Volpe et al. [2]	Unclear	Unclear	0	+	0	+	++
Popa et al. [29]	+	0	0	+	+	+	++++
Brumagne et al. [30]	+	0	0	0	+	+	+++
Lafond et al. [31]	+	+	+	0	0	+	++++
Harringe et al. [32]	0	+	+	0	+	+	++++
Mann et al. [19]	+	Unclear	0	+	+	+	++++
Salavati et al. [33]	+	+	0	+	+	+	+++++