Table 6 Diagnostic efficiency of eight morphological parameters of the central anterior chamber section for NACA using the Dataset-2

Light band	Total	Success	Parameter	Unit	Accuracy	Sensitivity	Specificity	F1
Horizontal and upper	1263 (eyes)	1156 (91.53%)	I	Pixel	0.78	0.71	0.80	0.60
			II	Pixel	0.76	0.72	0.77	0.59
			III	Ratio	0.67	0.75	0.65	0.52
			IV	Pixel	0.76	0.71	0.78	0.58
			V	Pixels	0.75	0.74	0.76	0.58
			VI	Degree	0.82	0.47	0.93	0.55
			VII	Ratio	0.75	0.48	0.83	0.48
			VIII	Pixel	0.71	0.64	0.73	0.50
Horizontal and lower	1263 (eyes)	1172 (92.79%)	I	Pixel	0.74	0.76	0.74	0.58
			II	Pixel	0.74	0.75	0.74	0.57
			III	Ratio	0.76	0.65	0.79	0.56
			IV	Pixel	0.75	0.69	0.77	0.57
			V	Pixel	0.75	0.73	0.75	0.57
			VI	Degree	0.83	0.58	0.91	0.61
			VII	Ratio	0.77	0.52	0.84	0.51
			VIII	Pixel	0.72	0.69	0.72	0.53

Parameter I: closed area; Parameter II: central anterior chamber section area; Parameter III: ratio of central anterior chamber section area to limbus area; Parameter IV: anterior chamber angle area; Parameter V: central area of the central anterior chamber section; Parameter VI: anterior chamber angle; Parameter VII: ratio of lengths of the corneal band to iris band; Parameter VIII: difference in lengths between the corneal band and iris band.

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