Our new Itrace Imager

22 August 2023

The newest piece of technology in our practice,

The iTrace is a single piece of ophthalmic diagnostic equipment that performs both wavefront aberrometry and corneal topography with a simple, quick set of scans. After capturing these two distinct measurements with ray tracing and Placido disk technology, the iTrace performs a complete analysis and generates a literal picture of a patient’s visual function in milliseconds.

The iTrace is the only device that uses ray tracing for wavefront analysis. It sequentially projects 256 parallel light rays through the entrance of the pupil and detects where each beam of light lands on the retina and how much light energy is transferred. Reviewing this retinal spot pattern point-by-point provides insight into a patient’s overall visual function.

Other devices that rely on a Hartmann-Shack sensor or dynamic skiascopy for wavefront imaging, analyze light as it is reflected back from the retina. Although this works for simple optical systems, these devices are prone to data confusion when measuring highly aberrated eyes, pseudophakia, with cataracts, through contact lenses, or over spectacles.

The iTrace and its proprietary ray tracing technology, however, can directly replicate a patient’s vision under any circumstance.

The iTrace is a key piece of equipment we use to help get the correct lens choice for a patient going into cataract surgery.