Optical Ophthalmic Biometer

Measure up to of 8 values

Simultaneously imaging of cornea and retina in high definition

All-in-one design, no extra PC required

Built-in IOL power calculation

User-friendly operation

Complete optical biometry

The Colombo measures up to 8 values, including axial length, corneal curvature radius, anterior chamber depth, central corneal thickness, white-to-white distance, pupil size, retinal thickness, and lens thickness (lens thickness is only available in Colombo IOL II)

Visualizable fixation check

To obtain reliable axial length values, fixation is important during measurement. Colombo allows you to visually verify your measurement, the alignment can be driven to the center of macula. This helps to increase the repeatability of measurement for those patients with poor visual acuity.

More information for retina condition

Although Colombo is not designed for diagnosis of retinal disease, but the high resolution images can offer a basic screening of macular pathology before cataract surgery, which is beneficial for both patients and doctors.

Axial length
Measurement range 12.1 mm – 38.0mm
SD of repeatability ±20um
Display resolution 10um

Central corneal thickness
Measurement range 0.2mm-1.4mm
SD of repeatability ±10 um
Display resolution 0.1 um

Corneal diopter
Measurement range 28.1D-84.3D
SD of repeatability ±0.25D
Display resolution 0.01D

Anterior chamber depth
Measurement range 0.7mm-6.0mm
SD of repeatability ±0.01mm
Display resolution 0.01mm

Pupil diameter
Measurement range 0.5mm-13.5mm
SD of repeatability ±0.09mm
Display resolution 0.01mm

White-to-white
Measurement range 6-16mm
SD of repeatability ±0.1mm
Display resolution 0.01mm