Parent term(s)
refractive error
+
Term with siblings
astigmatism +
aniseikonia
anisometropia
hyperopia
+
myopia
+
transient refractive change
Child term(s)
irregular astigmatism
regular astigmatism
denotes an 'is-a' relationship
denotes an 'is-a' relationship
denotes an 'is-a' relationship