He was the first physician to provide proof that myopia ( short-sightedness ) is generally a consequence of excessive length of the sagittal axis of the eye ( bulbus ).
2.
In the hip joint, lateral and medial rotation occur along the axis of the limb; extension ( also called dorsiflexion or retroversion ) and flexion ( anteflexion or anteversion ) occur along a transverse axis; and abduction and adduction occur about a sagittal axis.
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