Table 1.

Summary of Test Characteristics, Criteria for an Abnormal Ophthalmologic Examination, and Prevalence

TestSensitivitySpecificityOphthalmologic ExaminationPrevalenceReference
Titmus Stereotest and either Snellen E or Stycar graded balls9%–12.5%99% A6%7
MTI Photoscreener75.4%89.8%B20%10
81.8%90.6%C*10
Visiscreen 10085% 94% D60%8
91% 74% E12%9
  • Prevalence is the percentage that failed the criteria for the ophthalmologic exam within each particular study.

  • * Prevalence not reported.

    A, Visual acuity <20/30 in either eye; strabismus; corneal, lens, or fundus abnormality; refractive error >3.00 diopters sphere; astigmatism >2.00 diopters; B, Strabismus; corneal, lens, or fundus abnormality; myopia >1.00 diopter; hyperopia >2.75 diopters; astigmatism >1.00 diopter; anisometropia >1.50 diopters; C, Myopia ≥1.00 diopter; hyperopia ≥2.50 diopters; Anisometropia >1.00 diopter; astigmatism >2.00 diopters for children <12 months or >1.50 diopters for those >12 months; D, Myopia ≥1.00 diopter; hyperopia ≥2.50 diopters; astigmatism >2.00 diopters; anisometropia >1.00 diopter; E, Myopia >5.00 diopters; hyperopia >4.00 diopters; astigmatism >2.00 diopters; anisometropia >1.00 diopter.