Learning objectives
At the end of the session the trainee will be able to:
- Document the readings and measurements.
- Explain the examination techniques of A-Scan.
- List the things to be kept ready before performing A-Scan.
- Enumerate the main parts of a conventional Ophthalmic A-scan Device.
- List the indications and contraindications of A scan procedure.
- Explain the principle of A-scan and terminologies.
- Describe Ultrasound Biometry (A-Scan).
About this course
Ophthalmic ultrasound uses the reflection of high frequency sound waves to define the outlines of ocular and orbital structures and to measure the distance between them. A-Scan biometry is to determine the power of the intra ocular lens that replaces the natural lens during cataract surgery. A-Scan biometry is also called as axial length measurement scan. This measurement is combined with Keratometric readings to obtain the IOL power.
