The ZEISS Cirrus HD-OCT 4000 refurbished and calibrated to factory specifications uses spectral domain technology to capture exquisite volumetric (3D) and high definition line scans of the retina for precise detail of retinal tissue and pathology. The Cirrus HD-OCT realizes the superior capabilities of ZEISS optics and provides exquisite high definition images and analyses for enhanced clinical confidence. The Cirrus has advanced hardware and software that facilitate automated alignment and high patient through-put. HD layer maps and thickness maps reveal the critical details of histology and pathology at a glance. An elegant user interface and fast electronics means that the chair time is shortened. The Cirrus provides beautiful high definition OCT scans and LSO fundus images providing visualization of retinal structure.