Myopic astigmatism and presbyopia trial.
D001251:Astigmatism / Q000503:physiopathology*; D002986:Clinical Trials as Topic; D003867:Depth Perception / Q000502:physiology*; D006801:Humans; D009216:Myopia / Q000503:physiopathology*; D011305:Presbyopia / Q000503:physiopathology*; D011788:Quality of Life