Essilor Medica 700, User Manual

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Wave Analyzer Medica 700 User Guide
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Appendices
Tonometer Specifications
Calibrated Range 7mmHg – 44mmHg
Accuracy +/-2 mmHg
Method Non-contact air puff applanation tonometry
Retroillumination Specifications
Measurement wavelength 850nm
Method Retro led
LCD Screen Specifications
Screen type TFT LCD
Touchscreen type Capacitance type
Size 10” WSVGA resolution (1024 × 600 pixels)
Contrast ratio 500
Typical luminosity 250 Cd/m2
In a clinical comparison with a Goldmann tonometer on 231 eyes covering the range 7 –
33 mmHg, 95% of measurements with the Wave Analyzer Medica 700 tonometer were
within ±5mmHg of the Goldmann tonometer measurements.
13. 2 Clinical Studies
Pachymeter Study:
A clinical study was performed including 68 normal eyes that compared the Wave Analyzer
Medica 700 pachymeter function with the Pentacam rotating Scheimpflug camera.
Measurements of central corneal thickness (CCT) were recorded. The mean CCT on the
Wave Analyzer Medica 700 was 541.74 ±39.76µm (std dev) and on the Pentacam was 535.72
± 37.93µm. The Wave Analyzer Medica 700 measures 6.02µm thicker than the Pentacam. A
Bland Altmann graph showing the average and standard deviations of the measurement
differences as well as the 95% confidence levels (std dev × 1.96) and the 99% confidence
levels (std dev × 2.58) is shown in Figure A1. The 95% confidence levels for the measurement
were from 24.54µm to -16.80µm and 99% confidence levels for the measurement were from