Sonomed E-Z Scan 5500+ Series Operator's Manual page 44

Appendix
Appendix C
HAIGIS FORMULA
The Haigis IOL formula developed by Wolfgang
Haigis, Ph.D. may be ordered as an option on
 300 and E/Z-Scan 5500+
the P S
AC CAN
systems. For a clinical reference regarding the
Haigis IOL formula consult "Comparison of
immersion ultrasound biometry and partial
coherence interferometry for IOL calculation
according to Haigis"; Haigis, W, Lege, B,
Miller, N and Schneider, B; Graefes Arch Clin
Exp Ophthalmol (2000) 238:765-773. Another
source for information regarding the Haigis IOL
formula can be found on the Internet at
http://www.doctor-hill.com/haigis.htm.
website was created by Warren E. Hill, M.D.
Two different types of IOL constants referred to
as the "Standard" or "Optimized" constants (a0,
a1 and a2) are used when employing the Haigis
IOL formula. The Optimized constants are
derived based upon an analysis of at least 50 sets
of postoperative patient data.
Optimized constants contact:
Wolfgang Haigis, MS, Ph.D.
Head of the Biometry Department
University Eye Hospital
11, Josef-Schneider-Str.
D-97080 Wuerzburg
Germany
Tel +49 (931) 201-20640
+49 (931) 201-1
Fax +49 (931) 201-20454
w.haigis@augenklinik.uni-wuerzburg.de
At the present time there are two websites on the
Internet which contain additional information
and Microsoft Excel spreadsheets which can be
used to record patient data for submission to
derive the Optimized Haigis IOL Constants.
These websites should be consulted for further
information regarding the submission of clinical
data.
For physicians primarily in Europe, Africa and
Asia, consult the website:
http://www.augenklinik.uni-wuerzburg.de/uslab/refbfrme.htm
For physicians primarily in North and South
America, consult the website:
http://www.doctor-hill.com/download.htm
This
To obtain the
Haigis Formula
Appendix - 3