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The HAAG-STREIT OM 900 Ophthalmometer uses a classical distance-independent measuring principle which meets the three requirements of Helmholtz:
- The size of the mire image is independent of the distance between the
Ophthalmometer and the measured object.
- The resulting measurements are independent of the distance between the
Ophthalmometer and the measured object.
- The measurements are independent of the quality of focussing and are not
negatively affected by the accommodation of the user.
Special Features
Easy User
Up-to-date design allows measurement setting at the ocular and measurement values to be given at the press of a button.
Results Display
Clear arrangement of measurement values on the LCD.
Measurements
Highly visible luminescent fixation markers, for the measurement of the central cornea radii, the sagittal radii at 20°, 25° and 30° as well as the meridional radii 30°, are integrated as standard in the instrument. The OM 900 uses both, the Javel and the Cross Mark. At the touch of a lever, switching from one to the other is possible.
The integrated software calculates and displays the following:
• Central corneal astigmatismus
• Sagittal radii
• Meridional radii
• Eccentricities
• The difference between the eccentricities of sagittal radii and meridional radii in 30º
• All of which can be transferred to a printer or PC (both optional extras)
User Calibration
The OM 900 can be user-specifically calibrated, thus eliminating subjective systematic measuring errors.
It meets the latest IEC 601-1 norms that two different test patterns - Javal or Cross mark - can be used, switching from one to the other easily with just the touch of a lever
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