Assertion: lens's distortion | /r/CreatedBy | presbyopia
Facets:
Source sentences:
text: , Kepler explained how eyeglass lenses compensate for the distortions that are caused by presbyopia or myopia, so that the image is once again properly focused on the retina.
text: In his treatise[Emendations (or Supplement) to Witelo] (1604), Kepler explained how eyeglass lenses compensate for the distortions that are caused by presbyopia or myopia, so that the image is once again properly focused on the retina. ^