The OCULUS Easyfield® is designed for use as a visual field screener and a threshold perimeter for immediate re-examination of any abnormal findings. Full compliance with Goldman Standards makes the Easyfield® ideal for all common examinations of the central field of vision up to 30°. The Easyfield® C has an adjustable double chin rest and eye shields for maximum patient comfort.
One of the most striking features of the Easyfield® is its small space requirement. The self-contained design and light-shielded viewer enable examinations to be conducted in normal room lighting conditions. Its robustness and low weight make the Easyfield® Perimeter ideal for portable use. The lack of moving device parts guarantees long product life.
The Easyfield® Perimeter can be controlled via an external computer (Notebook or PC). The familiar user interface of the OCULUS programs is available on the computer and you can enjoy the full freedom of networking the examination data. The use of translucent Easyfield® occluders allows you to conduct examinations without the usual eye patch, thus saving you valuable time as you prepare for the examination.
Increased Diagnostic Reliability
Additional software programs improve the diagnostic value of visual field examinations conducted with the Easyfield® Perimeter. The Glaucoma Staging System (GSS2) per Dr. Brusini and the Glaucoma Staging Program (GSP) are Glaucoma risk indicators. The Threshold Noiseless Trend (TNT) is used for efficient progression analysis.
The Examination Programs
The Easyfield® provides pre-defined programs for the examination routines that are most frequently used. Measurements of the central visual field or the macula area are thereby conducted. This program series can be extended, if necessary, by interlinking available test grids and test strategies.
The OCULUS Test Strategies
As a screening unit, the Easyfield® Perimeter generally uses threshold related suprathreshold examination strategies. The advantage of this is that despite the short examination time, the examiner gains a meaningful overview of the examined area. Multiple test strategies are available for determination of the exact numeric values of the perception thresholds. (We prefer not to promote CLIP anymore.) The OCULUS “Fast Threshold” achieves a similar performance with clever improvements to the classic 4-2 step method. The unique SPARK strategy provides a rapid and reproducible threshold measurement for glaucoma patients.
The OCULUS Test Point Grid
The Easyfield® Perimeter’s fixed light emitting diode grid permits examination in areas such as the 30-2, 24-2 or 10-2. It is also possible to test individual hemispheres or quadrants. If necessary, individual points can be examined in any combination. The modular setup of the test programs allows all areas to be examined using all available standard strategies.
the measuring results of the Easyfield® Perimeter are summarized in a standard printout. For suprathreshold tests, only a single informational overview is printed, whereas for threshold examinations, all clinically relevant data are recorded and shown in various depictions.
the SPARK examination strategy was primarily developed for Glaucoma patients and is available for all OCULUS perimeters. It is based on data from more than 90,000 perimetric diagnoses and allows a very fast, yet very precise measurement of the thresholds in the central field of vision. The modular configuration of the method makes it suitable for a variety of applications:
- SPARK Precision (Option software) is the full version. The complete examination of the field of vision of glaucoma patients takes only 3 minutes per eye. The greater stability of the results allows for much better progression analysis.
- SPARK Quick is the strategy used for progression or screening examinations. The test takes just 1.5 minutes per eye.
- SPARK Training is ideal for patient training. The 40 second measurement can also be used as a screening examination.
The Spark strategy uses the correlation between different points in Glaucomatous visual fields to considerably expedite the examination.