The
Zeiss IOLMaster was
approved by the United States Food and Drug Administration in
March of 2000. A non-contact optical device that measures the
distance from the corneal vertex to the retinal pigment epithelium
by partial coherence interferometry, the IOL
Master is
consistently accurate to within ±0.02
mm or better.
The IOL Master is
the first such device to be widely used in clinical ophthalmology.
Calibrated against the ultra-high resolution 40-MHz Grieshaber
Biometric System, an internal algorithm approximates the distance
to the vitreoretinal interface, for the equivalent of an immersion
A-scan ultrasonic axial length.
Considering the fact that axial length measurements by A-scan
ultrasonography (using a standard 10-MHz transducer) have a
typical resolution of 0.10 mm to 0.12 mm, axial length measurements
by the IOL Master represent a fivefold increase in accuracy.
The IOL Master allows
fast, accurate measurements of eye length and surface curvature,
necessary for cataract surgery. The IOL
Master
is more efficient because it allows measurements to be taken
with complete confidence in the accuracy of the results. Also,
because the IOL
Master is non-contact (nothing touches the eye
itself), there is no need for anesthesia and there is no potential
for spread of contamination from the IOLMaster.
The IOL Master section
of this website contains
a complete online user's manual, available in two versions, including
a downloadable copies:
IOLMaster Downloads:
IOLMaster Checklist (pdf)
The above .pdf file contains the checklist
that our staff uses when measuring the axial length, central
corneal power, ACD, and horizontal corneal diameter using the
IOLMaster. The .pdf file contains three identical checklists.
We suggest separating each copy and having them laminated individually
to allow various staff members easy access to their own copy.
 IOLMaster
Manual V.5 (pdf)
IOLMaster
Manual V.4 (pdf)
IOLMaster Manual V.3 (pdf)
IOLMaster Service and Support:
For support, service and sales of the IOLMaster, please call
Zeiss IOLMaster Customer Service: 1-877-486-7473 ext.
4030
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