OCULUS Easyfield® C

Compact perimeter capable of performing standard automated perimetry

The OCULUS Easyfield® is a full-fledged compact perimeter capable of performing standard automated perimetry of the central visual field up to 30° eccentricity. It has been designed for the combined use as visual field screener and perimeter, offering features usually available only in large units. The spherical bowl with 30 cm (11.81”) radius is enclosed into an ergonomically movable cone equipped with a distance adapted lens. The Easyfield® conforms to the Goldmann standard and fulfills the ISO-12866 norm for perimeters.

Measurements of the Easyfield® are carried out using an LED grid with 135 fixed test locations, including the common 30-2, 24-2 and 10-2 patterns. The novel SPARK test strategy leads to faster and more stable threshold tests providing improved diagnostic capabilities. Besides the standard field indices the Easyfield® delivers evaluations of the innovative Glaucoma Staging Program (GSP) and the classifications provided by the Glaucoma Staging System (GSS 2).

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Easy Operation

The Easyfield® C Perimeter can be controlled via an external computer. 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.
Ergonomic Design

One of the most striking features of the Easyfield® C 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® C Perimeter ideal for portable use.
Glaucoma Staging Program (GSP)

The Glaucoma Staging Program (GSP) is useful in early detection of Glaucoma.

The GSP software grades examination findings into visual field classes (normal, glaucomatous, artifactual and neuro) based solely on their appearance. In addition, risk classes (normal, suspect, pre-perimetric, early stage, moderate and severe) are also assigned to findings of different severities that are classified as normal or glaucomatous. The examination results are presented in easy to understand green, yellow and red bar charts.
Glaucoma Staging System (GSS 2) per Brusini

The Glaucoma Staging System (GSS 2) per Brusini classifies visual field defects based on the perimetric indices MD (Mean Deviation) and PSD (Pattern Standard Deviation). The representative point of the examination is placed in a chart in accordance with the values of these indices. The chart shows defined areas for the different stages of disease (Stage 0 - Stage 5). It also separates generalized, localized and mixed defects.
SPARK Strategy

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.
Threshold Noiseless Trend (TNT) Progression Analysis

TNT provides a quantitative, statistical analysis of the visual field examination results conducted over time. For follow-up purposes, the software uses the visual field results and patient's threshold values supplied by 30-2, 30x24 or 24-2 grids over the entire examination period. TNT uses a specific filter to reduce the fluctuation range of the threshold values and to perform a consistent trend analysis. In conjunction with the fast SPARK strategy, the sensitivity of detecting progression of early stage glaucoma is greatly improved.

OCULUS Easyfield® C
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