Table 8 Diagnostic efficiency of eight morphological parameters of the central anterior chamber section for NACA using the Dataset-3

Light band	Total	Success	Parameter	Unit	Accuracy	Sensitivity	Specificity	F1
Horizontal and upper	349 (eyes)	309 (88.54%)	I	Pixel	0.74	0.78	0.71	0.70
			II	Pixel	0.75	0.79	0.72	0.71
			III	Ratio	0.67	0.86	0.54	0.67
			IV	Pixel	0.71	0.77	0.68	0.68
			V	Pixel	0.74	0.76	0.72	0.69
			VI	Degree	0.74	0.75	0.73	0.69
			VII	Ratio	0.65	0.64	0.66	0.59
			VIII	Pixel	0.64	0.62	0.65	0.57
Horizontal and lower	349 (eyes)	312 (89.40%)	I	Pixel	0.74	0.89	0.65	0.73
			II	Pixel	0.74	0.87	0.66	0.73
			III	Ratio	0.7	0.82	0.62	0.68
			IV	Pixel	0.68	0.74	0.63	0.64
			V	Pixel	0.74	0.81	0.69	0.71
			VI	Degree	0.76	0.88	0.69	0.74
			VII	Ratio	0.62	0.65	0.6	0.58
			VIII	Pixel	0.61	0.72	0.53	0.59

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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