A-scan ultrasound biometry
Diagnostic test used in optometry or ophthalmology
From Wikipedia, the free encyclopedia
A-scan ultrasound biometry, commonly referred to as an A-scan (short for Amplitude scan), uses an ultrasound instrument for diagnostic testing.[1] A-scan biometry measures the axial length (AL) of the eye prior to cataract surgery in order to assess the refractive power of the intraocular lens that will be implanted.[2]
| A-scan ultrasound biometry | |
|---|---|
| Purpose | diagnostic test used in optometry |