Ultrasound--a research tool in the study of accommodation.
Measurements of the globe were made at different stages of accommodation with Kretz A-mode ultrasonic equipment. A comparison between the movement of the crystalline lens in two refractive groups appeared to show that the highly myopic lens had to expand more per dioptre of accommodation; in other words, it was less efficient than the near-emmetropic lens. Also the posterior surface of the lens appeared to move more in highly myopic eyes than in near-emmetropic eyes.
D000065:Accommodation, Ocular; D000293:Adolescent; D000328:Adult; D000867:Anterior Chamber / Q000503:physiopathology; D006801:Humans; D007908:Lens, Crystalline / Q000503:physiopathology; D009216:Myopia / Q000503:physiopathology; D014463:Ultrasonography; D014822:Vitreous Body / Q000503:physiopathology