Catalog excerpts
Optimised perimetry for practitioners and patients THE HENSON STORY Over 30 years of innovation Since 1986, the Henson brand has been driven by three clear Some notable firsts In 1993, the Henson CFA 4000 became the first perimeter to allow operators to retest and/or add points during a visual 2) Improving operator efficiency field test for improved specificity. 3) Ensuring patient comfort. In 2009, ZATA was the first threshold test to use prior test Professor David Henson invented the CFS 2000, the world’s data for threshold tests, reducing test times and making first computerized,...
Open the catalog to page 2Supporting operator efficiency Compact design Intuitive user interface with context-sensitive help supports The ergonomic, relatively small size of the Henson 9000 ease-of-use for all staff and reduces training requirements. is ideal for space-constrained environments and allows for Operators also benefit from fast, easy, single-click access to flexible positioning in any consulting room. the Henson Windows-based database. Improving patient experience The unique facility to retest locations, add new locations or Full facilities for networking, linking to practice extend tests, without...
Open the catalog to page 3Leading the field The ability to add/retest points during Smart Supra tests reduces false positives and Innovating to improve workflow and patient experience improves spatial mapping. Drawing on the core principles of the Henson brand, our suite of visual field tests for both detecting and managing loss – use a number of unique innovations to deliver an intuitive and efficient user experience for operators, while ensuring ease-of-use for patients too. Flexibility for operator and patient Minimizing confusion and response errors for older (Screen) to 54 (24-2) and be manually extended from...
Open the catalog to page 4Smart Supra: the best of supra-threshold and threshold perimetry The Henson 9000 includes a unique supra-threshold algorithm designed to provide a solution to the three main problems affecting visual field tests today. 3 main problems with current visual field tests High variability at moderate to severely damaged test locations (<20 dB).2,3 Poor sensitivity to small central defects when testing with the 24-2 test pattern. Long test times only get longer with the inclusion of more test locations. 3 solutions from Smart Supra Smart Supra replaces the need to test at locations below 20 dB...
Open the catalog to page 5Management with ZATA threshold testing Further to the advantages of Henson Smart Supra, the Henson 9000 also offers a threshold test for the detection and monitoring of visual field loss . The Zippy Adaptive Threshold Algorithm (ZATA) developed by Professor David Henson uses the more efficient Bayesian method to derive threshold values. Bayesian methods were first introduced into perimeters in the SITA algorithm of the Humphrey Field Analyzer. ZATA further developed this method with reference to research demonstrating enhanced variability at test locations with depressed sensitivity.3,4 The...
Open the catalog to page 6Putting it into practice All the visual field tests and analytical tools you need You have all the tools you need to detect and monitor functional loss with our range of supra-threshold and threshold tests, as well as monitoring the whole visual field with the Esterman binocular driving tests (Groups 1 & 2). We understand that our equipment must fit seamlessly into your practice and processes. The Henson 9000 is a low maintenance, compact perimeter for flexible positioning with networking facilities available as standard. Its suite of tests and associated analytical techniques give you all...
Open the catalog to page 7References 1. De Moraes CG, Hood DC, Thenappan A, Girkin CA, Medeiros FA, Weinreb RN, Zangwill LM, Liebmann JM. 24-2 Visual Fields Miss Central Defects Shown on 10-2 Tests in Glaucoma Suspects, Ocular Hypertensives, and Early Glaucoma Ophthalmology. 2017 Oct;124(10):1449-1456. PMID: 28551166 2. Henson DB, Chaudry S, Artes PH, Faragher EB, Ansons A. Response variability in the visual field: comparison of optic neuritis, glaucoma, ocular hypertension, and normal eyes. Invest Ophthalmol Vis Sci. 2000 Feb;41(2):417-21. PMID: 10670471 3. Gardiner SK, Swanson WH, Goren D, Mansberger SL, Demirel...
Open the catalog to page 8Henson 9000 Perimeter: Technical specifications Test specifications Visual field test range Visual field testing distance Stimulus intensity (maximum) Background illumination Stimulus duration Stimulus size Stimulus color Test method Standard Automated Perimetry (SAP) Screening tests/patterns Smart Supra - single stimulus 26, 54 and 86 point tests (incorporating the 24-2 test pattern) Smart Supra - multiple stimulus 26, 54 and 86 point tests (incorporating the 24-2 test pattern) Esterman (Driving) Groups 1 (120 point) and 2 (124 point) (EU standard) Customized tests Test locations can be...
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