title: A new A-scan ultrasonoscope.
abstract: A new A-mode biometry system for determining axial length measurements of the eye has been developed that incorporates a soft-membrane transducer. The soft transducer decreases the risk of indenting the cornea with the probe resulting in inaccurate measurements. A microprocessor evaluates echo patterns and determines whether or not axial alignment has been obtained, eliminating possible user error. The new A-scan requires minimal user skill and can be used successfully by both physician and technician.
mesh_terms: D005123:Eye / Q000033:anatomy & histology*; D006801:Humans; D009885:Ophthalmology / Q000295:instrumentation*; D014465:Ultrasonics / Q000295:instrumentation*