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Vector notation results for amblyopia. (A) The percentage of children with amblyopia by amount of difference between eyes in refractive error along the horizontal/vertical (J0) and/or the oblique (J45) meridians.39 (B) The percentage of children with amblyopia by amount of VDD40,49,50 between eyes. *The prevalence of amblyopia in the subgroup was significantly different from that in the group with minimal (<0.35 VDD) difference between eyes.
