Technical Data

WaveLight® Analyzer

Type Diagnostic laser device
Laser class Class 2 (IEC 60825), class II (21 CFR 1040)
Working principle Tscherning principle. A light bundle is
projected onto the retina and captured by a
light sensitive camera. The distortion of the
light bundle in relation to the reference
light bundle is calculated and the wavefront
error displayed.
Resolution 13 x 13 dots (168 as the central point is not
measured)
Measuring beam Diode 660 nm (visible light), laser class 2
(IEC 60825)
Measurable pupil
diameter
3 to 8 mm
Measurement range -12 to +6 D sphere/-6 to +6 D astigmatism
Centration Eye tracking function (centered on the gravity center of the pupil)
Accuracy of the
refraction
+/-0.01 D measurement
Repeatability +/-0.05 D in consecutive measurements
Accuracy of the
wavefront
measurements
Zernike polynomials up to the 6th order
Focusing IR illumination of the cornea, reflection is
detected by an IR sensitive video camera
Acquisition time app. 250 ms
Operation Data input and data output via PC, patient
acquisition with XYZ stage
Capturing Manual or automatic/Automatic capturing
if the pupil in x/y-axis is within +/-100 μm
and in the z-axis within +/-200 μm
Calibration Calibration with calibrated test eye.
Verification of the complete measurement
process at any time.
Cooling Ambient air
Temperature range 18-30°C (65-86°F)
Humidity 30-80% at 25°C (77°F), not condensing
Mains connection 230 V/16 A /50 Hz, 110 V/16 A/60 Hz
Power consumption 250 W
Dimensions Optical unit (L x W x H): 45 x 21 x 50 cm
(17.7 x 8.3 x 19.7 inches)
Horizontal traverse
path
11 cm (4.3 inches)
Longitudinal traverse
path
9 cm (3.5 inches)
Weight 15 kg (optical unit), 33 pounds (optical unit)
Electrical safety class Class I, type B (IEC 60601)
Medical device class Class IIb product, Medical Device Directive
(MDD) 93/42/EEC
Device is in
compliance with
IEC 60601, IEC 60825, Medical Device
Directive (MDD) 93/42/EEC, 21 CFR
1040.10, 21 CFR 1040.11

Specifications are subject to change.