RapiDA; graphical output of results
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Unique software tracks improvement in real time
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Gives alpha point (cone function)
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Calculates S2 in real time (rod efficiency)
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Test terminates as soon as green light appears, in this case after 5 minutes
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Monitoring the test – graphical output of the results
RapiDA clinical trial
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Observational study comparing 20 AMD patients and 20 age matched normals
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RapiDA received MHRA approval as a medical device for research
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Ethical approval by Manchester University
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Aim: determine sensitivity and specificity of RapiDA
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Retinal photographs and Optical Coherence Photography obtained
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RapiDA results compared against Gold Standard ie AMD grade of fundus photograph
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Outcome measure: slope of rod section of DA curve (see fig x)
RapiDA: what the patient sees
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The slope of the DA curve was much
more shallow for patients than for control
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Of the 20 patients 19 were correctly identified by RapiDA
Of the 20 normals 18 were correctly identified as normal by RapiDA