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. Author manuscript; available in PMC: 2015 Jul 1.
Published in final edited form as: JAMA Ophthalmol. 2014 Jul;132(7):814–820. doi: 10.1001/jamaophthalmol.2014.424

Table 3. Sensitivity and Specificity of the Screening Devices for Detection of Strabismus and Amblyopia.

Characteristic Resulta
PVS Test result, positive/negative
 Strabismus, amblyopia, or both 183/5
 Neither 14/97
 Sensitivity 0.97 (183/188)
 95% CI 0.94-1.00
 Specificity 0.87 (97/111)
 95% CI 0.80-0.95
 Positive likelihood ratio 7.7
 95% CI 4.1-14.4
 Negative likelihood ratio 0.03
 95% CI 0.01-0.09
SureSight Autorefractor test result,
positive/negative
 Strabismus, amblyopia, or both 127/44
 Neither 43/69
 Sensitivity 0.74 (127/171)
 95% CI 0.66-0.83
 Specificity 0.62 (69/112)
 95% CI 0.50-0.73
 Positive likelihood ratio 1.9
 95% CI 1.4-2.7
 Negative likelihood ratio 0.42
 95% CI 0.29-0.61

Abbreviation: PVS, Pediatric Vision Scanner.

a

Data are given as number/number unless otherwise noted.