title: A photographic study of accommodative mechanisms: changes in the lens nucleus during accommodation.
mesh_terms: D000065:Accommodation, Ocular / Q000502:physiology*; D003624:Darkness; D003720:Densitometry; D005260:Female; D006801:Humans; D007908:Lens, Crystalline / Q000502:physiology*; D008297:Male; D008846:Micromanipulation; D010781:Photography / Q000295:instrumentation