It is finally demonstrated that the accommodative error is due to the depth of field

Recent research of various members of the CiViUM group, published in the OVS review, shows by means of adaptive optics what was known since a long time but has not been demonstrated so far – the accommodative lag present in every accommodating eye is dependant in its major part on the depth of field of the eye. More details in the article:

civium (from latin, genitive plural of civis-civis, "belong to the citizens")