Table 4. Assessment of study quality using modified NOS with respect to OCT scans.

Paper	Sample size	Validation technique	Unique database	Definition of glaucoma	CI	AUROC	Total
Burgansky-Eliash et al 2005[54]		X	X	X		X	4
Bowd et al 2008[55]	X	X	X	X		X	5
Bizios et al 2010[62]	X	X	X	X	X	X	6
Barella et al 2013[60]	X	X		X	X	X	4
Silva et al 2013[61]	X	X		X	X	X	5
Xu et al 2013[56]	X	X	X	X		X	5
Muhammad et al 2017[57]	X	X	X	X	X	X	6
Asaoka et al 2019[59]	X		X	X	X	X	5
Christopher et al 2018[58]	X	X	X			X	4
An et al 2019[50]	X	X	X	X	X	X	6

CI: Confidence interval, AUROC: Area under the receiver operating characteristics curve; NOS: Newcastle-Ottawa Scale; OCT: ocular coherence tomography.