Table 2

- Sensitivity and specificity of “Smart Optometry” application (clinician-performed) in detecting subnormal vision in 100 patients.

	Subnormal vision in the conventional
Variables	Yes	No	Total	Predictive value	P-value
Variables	Subnormal vision in the application
Yes	25	22	47	PPV (95% CI) 53.2%	<0.001^*
No	3	50	53	NPV (95% CI) 94.3%	<0.001^*
Total	28	72	100
Properties	Sensitivity (95% CI) 89.3%	Specificity (95% CI) 69.4%

↵^* Significant using Chi-square test at <0.05 level. PPV: positive predictive value, NPV: negative predictive value