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Evaluation of an electronic corneal pachometer

P S Binder, J A Kohler, D A Rorabaugh

Investigative Ophthalmology & Visual Science

|September 1, 1977

Summary

A new electronic corneal pachometer offers accurate and repeatable measurements, though it yields slightly thicker results than the standard device. Its enhanced capabilities allow for detailed corneal thickness mapping in large populations.

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Area of Science:

Ophthalmology
Biomedical Engineering
Optometry

Background:

Accurate corneal thickness measurement is crucial for ophthalmic diagnostics and contact lens fitting.
Standard corneal pachometers provide reliable central measurements but have limitations in assessing peripheral corneal thickness.

Purpose of the Study:

To compare the accuracy and repeatability of a new electronic corneal pachometer against a standard corneal pachometer.
To evaluate the potential of the electronic pachometer for broader corneal mapping and population studies.

Main Methods:

Central corneal thickness was measured in 16 non-contact lens wearers using both standard and electronic pachometers.
Repeatability and accuracy of measurements from both devices were assessed.

Main Results:

Both instruments produced repeatable and accurate results for central corneal thickness.
The electronic pachometer yielded consistently thicker measurements compared to the standard device.
The electronic pachometer demonstrated superior ease and accuracy in measuring peripheral corneal areas.

Conclusions:

The electronic corneal pachometer is a viable tool for accurate corneal thickness assessment, offering advantages over standard devices.
Its ability to measure peripheral cornea and integrate with computer systems facilitates large-scale population studies and longitudinal monitoring of corneal changes.

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