The Nidek AL-Scan is an optical biometer that performs all measurements for IOL calculation in one quick sequence. It measures axial length by low-coherence interferometry (14 to 40 mm), plus corneal curvature, anterior chamber depth, central corneal thickness, white-to-white and pupil size. Built-in IOL formulas include Haigis, Holladay, Hoffer Q and SRK/T, as well as post-LASIK formulas such as Camellin-Calossi. This unit is equipped with the integrated ultrasound option (A-scan and pachymetry) as a backup for dense cataracts where optical measurement is not possible. It has a tiltable 8.4-inch colour touchscreen and LAN and USB connectivity. Year of manufacture 2023. Supplied with ultrasound probe and holder, accessories, user manual (Spanish) and EU declaration of conformity under MDR (EU) 2017/745. This pre-owned unit is fully functional and in like-new condition.