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Tracey Technologies i-trace visual function analyzer
I Trace Visual Function Analyzer, supplied by Tracey Technologies, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/product/functional+visual+analyzer/i+trace+visual+function+analyzer/pm40504566-44-1-5
Average 90 stars, based on 1 article reviews
i-trace visual function analyzer - by Bioz Stars, 2026-09
90/100 stars

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Article Title: Characterization of Dysfunctional Lens Index and Opacity Grade in a Healthy Population
Article Snippet: The i-Trace Visual Function Analyzer (Tracey Technologies, Houston, TX) combines a Placido disk-based corneal topography and a ray tracing aberrometer [ ].

Article Title: Characterization of Dysfunctional Lens Index and Opacity Grade in a Healthy Population.
Article Snippet: Dysfunctional lens index (DLI) and opacity grade are objective lens outcomes provided by the i-Trace Visual Function Analyzer (Tracey Technologies, Houston, TX, USA) in an attempt to quantify lens degradation.

Article Title: Comparison of Dysfunctional Lens Index and Scheimpflug Lens Densitometry in the Evaluation of Age-Related Nuclear Cataracts
Article Snippet: s an age-related process, the molecular changes that occur in the crystalline lens induce a gradual loss of ocular transparency in the human eye and an increase of the lens density.1-3 There is currently an increasing demand for premium cataract surgery.. Cataract surgery is being performed earlier because patients ask for a better quality of vision and wish to reduce or avoid the need for glasses.4,5 Clinically, the methods used for cataract evaluation can be divided into two types: subjective and objective.. The method most commonly used to assess crystalline lens opacification is the Lens Opacities Classification System III (LOCS III).

Article Title: Changes of dysfunctional lens index before and after implantable collamer lens V4c implantation in patients with moderate-to-high myopia.
Article Snippet: The following parameters were compared preoperatively and at day 1, 1, 3, and 6 months postoperative visits: uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA, recorded in LogMAR units), manifest refraction spherical equivalent (MRSE), intraocular pressure (IOP) using a noncontact tonometry Canon Full Auto Tonometer TX-F (Canon, Inc., Tokyo, Japan), endothelial cell density (ECD) by SP-3000P (Topcon Corporation, Kyoto, Japan), the vault (distance between the posterior surface of the ICL and the anterior lens capsule) measured by an Optovue Angio OCT (Optovue Inc., Fremont, California, USA), and DLI by i-Trace Visual Function Analyzer (Tracey Technologies, Houston, TX).

Article Title: Novel Subclassification of Presbyopia Based on Lens Functional and Structural Features.
Article Snippet: The i-Trace Visual Function Analyzer (Tracey Technologies, Houston, TX, USA) calculates DLI values, HOA, andmodulation transfer function (MTF) using the i-Trace prime version 7.0.1 software within a 6-mm diameter zone in a dark room.18,22 DLI values range from 0 to 10, with lower values indicating a more dysfunctional lens and higher values correlating with better lens performance (see Fig. 1).



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