title: Study of the ultrasonic characteristics of the lens.
mesh_terms: D000042:Absorption; D000818:Animals; D002386:Cataract; D006801:Humans; D007908:Lens, Crystalline; D008722:Methods; D010781:Photography; D013016:Sound; D013552:Swine; D014159:Transducers; D014465:Ultrasonics