We also understand, though, that a big part of the decision about whether to adopt a new technology involves doing your research and making sure the device can provide the results that you need in an accurate, repeatable manner.
We believe that the iTrace is unrivaled in terms of the information it can provide to doctors — and you can have faith that all of that information is generated in the most precise way possible. After all, as one of the most trusted devices by academic researchers, the iTrace has been used in clinical studies since the technology was developed.
Studies that Focus on the iTrace or Its Technology
There’s a growing base of research that exists in which the primary methods of the iTrace are studied and/or compared against similar functions of competing devices. We’ve listed the most notable examples here for your benefit:
“Comparison of laser ray-tracing and skiascopic ocular wavefront-sensing devices”, Eye, 2009
This study makes a direct comparison between the proprietary Ray Tracing technology used by the iTrace and the dynamic skiascopy used by its main competitor. The conclusion suggests that Ray Tracing lends the device the precision needed to detect higher order aberrations (HOAs) better than competing technology.
“Correlations of Objective Metrics for Quantifying Dysfunctional Lens Syndrome With Visual Acuity and Phacodynamics”, Journal of Refractive Surgery, 2017
Researchers in this study compared the iTrace’s proprietary Dysfunctional Lens Index scale with conventional means of testing lens opacity and dysfunction. The study finds a correlation between the DLI and traditional comparison factors, implying that the iTrace meets the standards of accuracy needed for the optimal diagnosis of a dysfunctional lens.
“Clinical evaluation of toric intraocular lens implantation based on iTrace wavefront keratometric astigmatism”, BMC Ophthalmology, 2020
This study tested the iTrace’s proprietary calculations of corneal astigmatism as a way to understand the accuracy and fit of the device to be used in planning effective toric lens procedures. Researchers found the iTrace’s built-in toric calculator to be “safe and effective” for application in this setting.
“Dysfunctional Lens Index Serves as a Novel Decision-Maker for Age-Related Nuclear Cataracts”, Current Eye Research, 2019
Cross-sectional research was carried out to compare the Dysfunctional Lens Index (DLI) with several other methods of assessing lenticular opacity, including the objective scatter index (OSI) and Scheimpflug-based average lens density (ALD). The DLI was assessed to be more accurate than comparative techniques.
“Objective accommodation measurements in pre-presbyopic eyes using an autorefractor and an aberrometer”, Journal of Cataract & Refractive Surgery, 2008
In a study that compared the iTrace wavefront aberrometry’s effectiveness in measuring accommodation in pre-presbyopic eyes, the iTrace was found to be suitable for use in this application.
“Comparison of Dysfunctional Lens Index and Scheimpflug Lens Densitometry in the Evaluation of Age-Related Nuclear Cataracts”, Journal of Refractive Surgery, 2016
This study compared the accuracy of the iTrace’s key method of measuring and assessing the density of age-related nuclear cataracts to a few other subjective and objective methods. Researchers concluded that “the DLI may improve the preoperative evaluation of a nuclear cataract and the monitoring of its progression.”
Studies in Which the iTrace Is Used
Below you can find selections from a growing body of research in which the iTrace was used as a method of gathering data central to the study’s core focuses. In fact, the iTrace has been used by almost every company in the prebyopic treatment space to study the results of these devices and therapies.
Internal spherical aberration by ray tracing-type aberrometry in multifocal pseudophakic eyes | Eye (nature.com)
The iTrace was found to be an accurate measuring device to desitinguish the internal spherical aberrations for all types of IOLs.
“Higher Order Aberrations in Children with Amblyopia”, Journal of Pediatric Ophthalmology & Strabismus, 2008
Researchers used the iTrace to measure higher order aberrations (HOAs) in children with amblyopic eyes.
“Wavefront-Guided LASIK Has Comparable Ocular and Corneal Aberrometric Outcomes but Better Visual Acuity Outcomes Than SMILE in Myopic Eyes”, Journal of Refractive Surgery, 2018
The iTrace was one of the several tools used to compare the results of wavefront-guided LASIK with SMILE refractive surgery in specific patients.
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