Assessment of vitreous haze using ultra-wide field retinal imaging

Journal of Ophthalmic Inflammation and Infection

Table 1 Statistical evaluation of vitreous haze detection (clinical haze present in 12 eyes)

Statistical measure	Composite UWF images (haze + in 9 eyes)	Red-only UWF images (haze + in 17 eyes)	Red-free UWF images (haze + in 16 eyes)	Conventional Zeiss images (haze + in 16 eyes)
Sensitivity	0.27	0.50	0.42	0.50
Specificity	0.88	0.85	0.86	0.84
PPV	0.31	0.35	0.31	0.33
NPV	0.86	0.91	0.90	0.91
Positive LR	2.25	3.40	2.92	3.13
Negative LR	0.83	0.53	0.68	0.60

UWF ultra-wide field imaging, PPV positive predictive value, NPV negative predictive value, LR likelihood ratio