title: The Hirschberg test: analysis from birth to age 5.
abstract: The theoretical conversion factor for the Hirschberg test was calculated from birth to age 5. This result, 1 mm = 19.5, delta remains essentially constant from birth.
mesh_terms: D000367:Age Factors; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000175:diagnosis*; D008433:Mathematics; D013285:Strabismus / Q000175:diagnosis*; D014787:Vision Tests / Q000379:methods*