265
Specifications Formula References
Formula
References
Table 9 below lists the references for the calculation
formulas used in the Accutome A-Scan Plus.
Table 9 Formula References
Hoffer Q
Hoffer Q formulas are implemented as defined in “The
Hoffer Q formula: A comparison of theoretic and regres
-
sion formulas”, by HOFFER KJ: The Hoffer Q formula: A
comparison of theoretic and regression formulas. J Cat-
aract Refract Surg, 19:700-712, 1993; ERRATA 20:677,
1994.
The article and its errata do not mention that restricting
the calculated post operative ACD to 2.5 to 6.5 should
no longer be done, as Dr. Hoffer now requires.
Holladay Holladay formulas are implemented as defined in “A
Three Part System For Refining Intraocular Lens Power
Calculations”, by Jack T. Holladay,
Journal of Cataract and Refractive Surgery, Vol 14, Jan
1988.
SRK/T SRK/T formulas are implemented as defined in “Lens
Implant Power Calculation, A Manual For
Ophthalmologists & Biometrists”, by John A. Retzlaff,
Donald R. Sanders, Manus Kraff, Third Edition.
Haigis "Formulas for the IOL calculation according to Haigis",
by Dr. W. Haigis, Wuerzburg July 8, 2002. The formula
has been implemented as specified by Dr. Haigis and
has received compliance certification from Dr. Haigis.
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