1
I. INTRODUCTION
Ultrasonic Pachymetry is an integral part of refractive corneal surgery as well as
certain screening procedures that are a function of corneal thickness. The DGH 550
(
Pachette 2
) is an ultrasonic pachymeter that uses echo spike techniques to measure the
thickness of the cornea. This is the recommended method for obtaining corneal
thickness measurements because it offers the following advantages:
•
Reproducibility
•
High accuracy
•
Ability to take measurements anywhere on the cornea
•
Measurements are not dependent upon patient fixation
•
Ease of use
The corneal thickness measurement may then be used in many different ways
including: Lasik and glaucoma screening, Lasik flap measurement, corneal edema
check for extended wear contact lens patients, and pre-operative data for intrastromal
ring implantation and radial/arcuate keratotomy.
The
Pachette 2
was designed to provide a means of obtaining fast, accurate, corneal
thickness measurements with an instrument that is simple to use, economical, and ultra-
portable. We invite you to read this manual carefully to discover how quickly and
easily the
Pachette 2
can be integrated into your practice.