Colombo IOL II Optical Biometer

The Colombo IOL II delivers spectral domain OCT-based biometry using a 1050nm wavelength light source optimized for cataract penetration. Developed by Moptim as an evolution of the original Colombo IOL platform, this second-generation device measures nine ocular parameters in a single scan while simultaneously imaging both anterior and posterior segments of the eye.

Product Overview

Accurate biometry forms the foundation of successful cataract surgery outcomes. The Colombo IOL II addresses the clinical challenge of obtaining reliable measurements in eyes with dense cataracts, where traditional 840nm wavelength biometers may struggle to penetrate the opacified lens.

The system employs Moptim’s patented dual-path SD-OCT technology, enabling simultaneous visualization and measurement of structures from the cornea through the retina. This integrated approach eliminates the need for separate anterior segment and axial length measurements, streamlining the pre-operative workflow.

Key Features

1050nm Wavelength Technology: The longer wavelength SLD light source provides superior penetration through cataractous lenses compared to conventional 840nm systems. This engineering choice targets the significant proportion of cataract patients with mature or dense opacities where measurement acquisition can be challenging.

Complete 9-Parameter Biometry: A single acquisition captures axial length, keratometry, anterior chamber depth, lens thickness, central corneal thickness, white-to-white distance, pupil diameter, retinal thickness, and choroidal thickness. The nine-parameter dataset supports advanced IOL power formulas that incorporate multiple anatomical variables.

Automatic Real-Time Fixation Check: Correct fixation is critical for accurate axial length measurement. The Colombo IOL II provides continuous monitoring of patient fixation, automatically rejecting measurements obtained during poor alignment. This automated quality control ensures consistently repeatable results without relying on operator judgment.

Simultaneous Anterior and Posterior Imaging: High-definition OCT images of both the cornea and retina are captured alongside biometric measurements. While not intended as a diagnostic tool for retinal disease, these images provide basic screening capability for macular pathology prior to cataract surgery.

Integrated IOL Power Calculation: Built-in formulas calculate recommended IOL power without requiring external software. The all-in-one design eliminates the need for a separate PC workstation.

Technical Specifications

Colombo IOL II’s 1050nm SD-OCT captures nine biometric parameters — from axial length to choroidal thickness — in roughly 20 seconds, covering a 14–40mm axial range without an external workstation.

Clinical Applications

Cataract Surgery Planning: The primary application involves pre-operative biometry for IOL power selection. The device’s superior cataract penetration capability addresses measurement challenges in patients with dense nuclear sclerosis, posterior subcapsular cataracts, and mature cataracts where other devices may fail to acquire axial length.

Refractive IOL Selection: The full parameter set supports premium IOL selection, including toric lenses for astigmatism correction and multifocal designs. Accurate measurement of anterior chamber depth and white-to-white distance informs lens sizing decisions.

Pre-Operative Screening: Simultaneous retinal imaging provides an opportunity to identify macular pathology that might limit visual outcomes despite successful cataract surgery, helping manage patient expectations.

Regulatory Status

Frequently Asked Questions

What parameters does the Colombo IOL II measure?

The device measures nine parameters: axial length (AXL), keratometry (K), anterior chamber depth (ACD), lens thickness (LT), central corneal thickness (CCT), white-to-white distance (WTW), pupil diameter (PD), retinal thickness (RT), and choroidal thickness (CT). All measurements are obtained in a single acquisition.

How does the 1050nm wavelength benefit cataract patients?

The longer 1050nm wavelength penetrates cataractous lenses more effectively than the 840nm wavelength used in many competing devices. This enables successful measurement acquisition in eyes with dense cataracts where standard biometers may fail, reducing the need for alternative measurement methods such as immersion ultrasound.

Does the Colombo IOL II require a separate computer?

No. The system features an all-in-one design with integrated display, processing, and IOL power calculation software. No external PC or workstation is required for operation.