![]() ![]() PROSE patients may also benefit from our HOA technology. This technology can correct significant glare, ghosting, halos, starbursts, and double vision, and can be particularly helpful for patients with post-LASIK vision issues or patients who require exceptional visual acuity, such as athletes or military personnel. #Itrace abberometer fullFor more challenging HOAs, practitioners with an aberrometer can harness our SmartSight HOA® technology, using virtually any aberrometer on the market. WHAT IS THE iTRACE Our unique, 5-in-1 device displays the full visual function of a patient’s eye with a simple scan. In our BostonSight SCLERAL lenses, SmartSight® FSE (front surface eccentricity) is built-in to the lens to control HOAs. Wavefront Technology and HOA Correction at BostonSightīostonSight has innovative technologies to correct HOAs. Thibos, these advanced techniques can allow for monitoring changes in optical quality for dry eye patients, for example, assessing outcomes of advanced vision-correcting therapies, and tracking visual abnormalities in growing eyes. These issues can more easily and accurately be identified and corrected using wavefront techniques. Patients with more complex, or higher-order aberrations (HOAs), may have more subtle vision errors that are not detected with traditional methods. Technologies such as this continue to improve doctors’ ability to diagnose and treat eye diseases.įor those with lower-order vision errors, such as nearsightedness or farsightedness, these precise measurements can yield more accurate vision correction with contact lenses or eyeglasses. It can eliminate the potential systematic errors resulting from. In a matter of seconds, an instrument called an aberrometer uses wavefront technology to provide a detailed analysis of the eye that an eye doctor can then use to identify and correct vision errors. e TRP marking method using the iTrace aberrometer is simple and accurate for pre- operative marking of toric IOLs. Methods: All eyes of patients underwent 3 sets of measurements at a single visit, using Pentacam AXL Wave and iTrace. Design: Prospective, cross-sectional study. Setting: Narayana Nethralaya, Bangalore, India. This technology allows for improved diagnosis and treatment of both lower-order (most common) as well as higher-order (more complex) vision errors. To assess repeatability and agreement of the Pentacam AXL Wave with that of the iTrace aberrometer. By analyzing the way in which the eye refracts light, vision errors can be more accurately identified as subtle errors are revealed. Wavefront technology uses light waves passed through the eye to obtain a detailed measurement that can more precisely describe vision disorders compared with traditional measurement techniques. Thibos of the School of Optometry at Indiana University pioneered the use of wavefront technology in optometry. Keratometry Orbscan II White-to-white distance iTrace.Dr. For the measurement of WTW distance, the range of the 95 % LoA between the two devices was 0.47 mm.įor some clinical applications, the keratometry and WTW distance measurements obtained by the Orbscan II topographer and the iTrace aberrometer differed greatly and therefore were not interchangeable.Ĭlinical trials number: ChiCTR-OCS-14005077 (August 2nd, 2014). ![]() Ocular aberrations were measured with iTrace (Tracey Technologies. For the measurement of corneal power, the 95 % limits of agreement (LoA) between the Orbscan II and iTrace were - 0.21 to 1.21 D for the flat meridian and - 0.15 to 1.25 D for the steep meridian. of IHOAs for a pupil diameter of 4 mm were measured with an iTrace aberrometer. The device uses a single beam refractometer based on the retina for tracing and measuring the distribution of eye refraction. The mean WTW distance measurements with the Orbscan II and iTrace were 11.57 ± 0.34 and 11.33 ± 0.36 mm, respectively (P < 0.0001). The Tracey iTrace is a wavefront aberrometer designed by Tracey Technology. The mean keratometry values with the Orbscan II and iTrace were 43.16 ± 1.44 and 42.64 ± 1.43 diopter (D), respectively (P < 0.0001). Statistical evaluation was performed using the paired t test, Pearson correlation, and Bland-Altman analysis for comparison of measurement techniques. Keratometry readings in the flat (Kf) and steep (Ks) meridians and WTW distance were measured with the Orbscan II and iTrace systems in 100 myopic patients. The purpose of this study was to compare corneal power and horizontal corneal diameter (white-to-white distance) readings obtained by the Orbscan II topographer and the iTrace aberrometer. ![]()
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