Use of ultrasound in intraocular lens calculation in the United States: AIOIS survey results.
D005123:Eye / Q000033:anatomy & histology; D006801:Humans; D007910:Lenses, Intraocular / Q000379:methods*; D008433:Mathematics; D009885:Ophthalmology; D012029:Refraction, Ocular; D012955:Societies, Medical; D014463:Ultrasonography; D014481:United States