Table 1

Prevalence of unilateral and bilateral amblyopia by different causes in Hani students (n=3050)

Amblyopia typeWith amblyopia, nPrevalence (95% CI), %
Unilateral170.56 (0.35 to 0.89)
 Strabismic10.03 (0.00 to 0.18)
 Anisometropic160.52 (0.32 to 0.84)
  ≥1.00 D SE anisohyperopia50.16 (0.07 to 0.37)
  ≥3.00 D SE anisomyopia40.13 (0.05 to 0.33)
  ≥1.50 D aniso-astigmatism60.20 (0.09 to 0.43)
  ≥1.00 D SE anisohyperopia+≥1.50 D aniso-astigmatism10.03 (0.00 to 0.18)
Bilateral80.26 (0.13 to 0.51)
 Ametropic80.26 (0.13 to 0.51)
  ≥4.00 D SE hyperopia30.10 (0.03 to 0.29)
  ≥6.00 D SE myopia10.03 (0.00 to 0.18)
  ≥2.50 D astigmatism40.13 (0.05 to 0.33)
  • SE, spherical equivalent.