Table 6

Diagnostic capabilities of the screening tools for detecting any vision problem for children in junior kindergarten (JK) and senior kindergarten (SK)

Screening toolSensitivitySpecificity
GradeJKSKJKSK
All five tools0.81 (0.73 to 0.88)0.89 (0.80 to 0.96)0.44 (0.39 to 0.50)0.57 (0.50 to 0.64)
Cambridge Crowded Acuity0.59 (0.50 to 0.68)0.57 (0.45 to 0.69)0.68 (0.63 to 0.73)0.81 (0.75 to 0.86)
Randot Preschool0.37 (0.28 to 0.45)0.26 (0.16 to 0.37)0.88 (0.84 to 0.92)0.93 (0.89 to 0.96)
Plusoptix Photoscreener0.60 (0.51 to 0.69)0.71 (0.58 to 0.81)0.86 (0.82 to 0.90)0.90 (0.84 to 0.94)
Spot Photoscreener0.55 (0.46 to 0.64)0.68 (0.55 to 0.78)0.93 (0.89 to 0.95)0.95 (0.90 to 0.97)
Pediatric Vision Scanner0.37 (0.29 to 0.46)0.48 (0.36 to 0.60)0.74 (0.70 to 0.79)0.80 (0.74 to 0.85)
  • 95% CIs based on bootstrapping are shown in parentheses.