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Frey Visual Field Analyzer AP-250

The AP-250 and AP-250BY are advanced, fully automated static LED projection perimeters designed for comprehensive visual field testing. Both models utilize green LED stimuli in Goldman Size III for standard perimetry. The AP-250BY further supports Blue-on-Yellow (SWAP) testing with a Goldman Size V blue stimulus and yellow background illumination, meeting SWAP perimetry standards. Equipped with intuitive software, the devices offer a wide selection of test strategies, visual fields, and customizable parameters. Fixation monitoring is automated via an integrated camera or blind spot tracking. Built-in analysis tools include regression analysis and standardized formats for result display and printing. Compatible with any Windows-based PC, the AP-250 and AP-250BY are easy to install and integrate into existing clinical workflows.

Key Features

Advanced static perimetry capabilities: Static perimetry is the most frequently used technology for quality of visual field verification, detection of glaucoma and for monitoring glaucoma related changes in visual field. AP-250 and AP-250BY are supported by a rich library of test fields and strategies that meet and exceed user requirements and broad range of perimetry applications.

Bi-Driving test: Bi-Driving is test for binocular patient examination with vision field extended to 80˚ nasally and temporally. The test fulfils requirements for driver testing. During the test, both eyes of the patient are simultaneously monitored by the digital camera.

Blue-on-Yellow: Blue-on-Yellow static perimetry is a test used for early glaucoma detection. This feature is available on AP-250BY and performed according to SWAP recommended Goldman size V stimulus in blue color presented on yellow color background.

Reduced ambient light conditions: AP-250 and AP-250BY measurement bowl is very well designed and engineered housing a combination advanced digital bowl illumination controls which reduces requirements for test room illumination conditions. For improved patient comfort, ventilation is provided by whisper-quiet concealed fans.

Defect progress analysis: Regression analysis module allows user to track changes in field of vision in time, using easy for interpenetration graphs. Multiple examination results of the same patient can be used for the analysis. Regression curves can be presented i absolute dB values, in relation to hill of vision or age normative values or particular global parameters like PD or AD. Analysis of the data can be limited to particular area of vision field like periphery or center, or can cover entire tested field of vision.

Fundus overlay: To better visualize relation of vision field defects and retinal image, Fundus overlay function allows to import fundus image and then use it as a background for displaying values recorded during the examination. Proper position of fundus image in relation to perimetry data is achieved by selecting macula and blind spot on fundus picture.

Test editor: Test field editor allows user to create their own test fields specific for particular requirements. For faster creating new test field it starts with predefined ones, like 30-2.

Quick access menu: For better operation efficiency quick access menu reduces number of parameters required to be entered before examination may start. User can predefined it’s test types, then operator has to select or enter patient data only. This function reduces overall test time and introduces standardization to test procedures.

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