A-scan ultrasound biometry explained
| A-scan ultrasound biometry |
| Purpose: | diagnostic test used in optometry |
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]
See also
- B-scan ultrasonography
- Ultrasonography
Notes and References
- Web site: Waldron . Rhonda G . A-Scan Biometry: Practice Essentials, Ultrasound Principles, Ultrasound Biometry Instrumentation . Medscape Reference . 2022-08-10 . 2024-08-10.
- Petrella . Lorena . Perdigão . Fernando . Caixinha . Miguel . Santos . Mário . Lopes . Maria . Gomes . Marco . Santos . Jaime . A-scan ultrasound in ophthalmology: A simulation tool . Medical Engineering & Physics . 97 . 2021 . 10.1016/j.medengphy.2021.09.005 . 18–24.
