The A-Scan (Biometry Machine) is a diagnostic device used to measure the axial length of the eye and calculate the power of the intraocular lens (IOL) required before cataract surgery. It provides precise measurements that help surgeons plan safe and accurate lens implantation. This equipment is commonly used in ophthalmology clinics and eye surgery centers.It is typically made of a metal and high-grade plastic body with an ultrasonic probe or optical biometry sensors and internal 

electronic components.