With the guided workflow, all relevant steps for reliable testing are explained. This can shorten examiner learning curves and fosters high quality visual field results.
Fixation Control
Automatically adresses fixation loss
Fixation losses due to low patient compliance are a major cause of unreliable visual fields. With the Haag-Streit Fixation Control, there's no need to worry. The Fixation Control pauses testing during improper fixation and resumes automatically, This ensures that each visual field point is tested.
After starting the examination by pressing the perimetry symbol on the right, the patient’s far distance refraction is manually entered or automatically imported from the EMR. After selecting the eye to be tested, the software automatically calculates the adequate trial lens to use, taking the patient’s age into account.
Test parameters are selected with just one click. The list of available options can be individualized to just show the standard testing protocols of a clinic for improved consistency between tests.
Consequently, the patient’s position needs to be adjusted and confirmed using the video monitor of the patient’s eye. For inexperienced patients, demo stimuli can be presented to visually support patient instructions. Before the test is started, all test parameters are once more available for review.
Optionally, patient instructions can be displayed in many languages. This is helpful for inexperienced patients and when patients are examined who do not speak the local language.
During the test, the patient’s eye position is monitored on the video monitor. False positive and false negative results out of normal ranges are flagged with two colors and the progress of the test is shown.
After finishing the examination, there are multiple options on how to proceed: the second eye may be tested, the results may be printed or displayed, another test methodology may be added to the same eye or one may simply wish to leave the examination and return to the patient screen.
