... : Detecting ophthalmic disease, displaying the focus location, configurationOphthalmic A/B Scan Model: IScan 20AB Feature: Advanced technique, powerful functions ... Adjustable Output: A scan: Output the IOL calculate table and A scan curve. B scan: High definition B scan image ... ≥ 50mm Angle: 53° Gray Scale: 256 Display Mode: B/B+A/B+B A Scan Probe: 10MHz With LED Precision: ± 0.06mm Depth: ...