... 4.Fine image clarity, high resolution 5.Powerful FeaturesImaging Mode: B, B+A, B+B, AHigh Resolution ImagesMemory: up to 4 ImagesZoom: 8 StepsImage ... an adjustable range of 0 ~ 59dBBiometry Accuracy: ≤ ±0.06mmMeasuring Range: 16 ~ 39mmMeasuring Parameters: Anterior Chamber Depth, Lens Thickness, Vitreous Length, Axial ...