The OLCR Pachµmeter gives corneal thickness measurements of an unparalleled accuracy and reproducibility - 1micron.

This is a non-contact device requiring
• no drops
• little skill to operate and
• no discomfort to the patient

Utilising the latest in Optical Low Coherence Reflectometry technology, it is the perfect tool for those, such as Refractive Excimer users, Glaucoma specialists and others, looking for that bit "extra" with regards both speed and accuracy of measurement.

1 micron Precision and Reproducibility
Measurement Rate (max): 20Hz
Spot Diameter on Cornea: 0.1mm
Optical Power Incident (Cornea): In accordance with ANSI Z-136.1
Data Acquisition and Display: Real-time
Printer: Thermal
Interface Connections: PC, Laptop, Printer and Ethernet High Resolution

The OLCR Pachµmeter comes in two versions:

Slit Lamp-Mounted
Can be mounted to any existing HAAG-STREIT Slit lamp (BM 900, BP 900, BD 900, BQ 900 and BX 900) and also to those HS copies which accept the C/M type Goldmann Tonometer.

It is important to understand that during measurement only the binoculars of the slit lamp are used. True slit lamp skills are not needed in order to take a corneal thickness measurement - so it can be taken by anyone. The slit lamp is used as the mount because of its stability and ability to take of-centre thickness measurements whilst ensuring that the measuring beam is always perpendicular to the spot being measured (i.e.always measuring directly through, rather than across, the cornea)

Excimer Laser-Mounted
With additional software (provided) and a laptop or computer, the
OLCR Pachµmeter can, as opposed to the single-measurements of the slit lamp-mounted version, measure continuously and on-line. With the cooperation of your excimer supplier it is therefore possible to mount the OLCR Pachµmeter through the ablating beam to enable a continuous thickness reading to be taken, displayed and recorded throughout the whole ablation process. The end result is a complete history, with "flags" marking key events-flap cutting, flap opening, ablation, flap closure etc. - , of the whole procedure.


Corneal Thickness / Tonometry
Contained within the software of either system is a programme called "Tonofit".
This programme allows for the entry, after a corneal thickness measurement has been taken, of the measured IOP (contact or non-contact - they all require correction according to corneal thickness change) and the recalculation of this to give an actual IOP.
In view of the continuing debate concerning both what constitutes a "normal" corneal thickness and what formula should be used to compensate for thickness change. "Tonofit" contains a factory default formula (as a guideline) and the space for three extra formula to be easily entered by the user according to either their own experience or to firm guidelines as and when these are determined.