Anmeldung zur Tagung
Registration
Grußwort
Invitation
Themen
Topics
Allgemeiner Ablauf
General overview
Wissenschaftliches Programm
Scientific program
Kurse
Courses
Symposien
Symposiums
Frühstück mit Spezialisten
Breakfast with specialists
Arzthelferinnen-Fortbildung
Rahmenprogramm
Social program
DOG Information
DOG Information
Allgemeine Informationen
General Information
Autorenindex
Index of Authors
Ausstellerliste
Exhibitors
Sponsoren
Sponsors
Teilnahmegebühren
Registration fees
Impressum
Comparison of axial length, anterior chamber depth and keratometry with the Zeiss IOL-Master™ and ultrasound /ophthalmometry by Zeiss
Becker K. A., Auffarth G. U., Völcker H. E.
Universitäts-Augenklinik Heidelberg, INF 400, 69120 Heidelberg
Background: Cataract-extraction with the implantation of an intraocular
lens is one of the most performed operations. The visual outcome after
cataract-surgery depends on the accuracy of the calculation of the IOL.
The Zeiss IOL-Master™ is an easy to use instrument compared to immersionsultrasound
and ophthalmometry by Zeiss.
Methods: We examined in total 331 by Zeiss IOL-Master™ and
immersions-ultrassound (G.B.S.) and ophthalmometry by Zeiss. We compared
axial length, anterior chamber depth (ACD) and keratometry.
Results: The measured axial length of 295 eyes (268 phacic, 23
pseudophacic and 4 aphacic eyes) with Zeiss IOL-Master™ showed a
mean value of 23.54mm±1.65 mm (range 20.81mm to 34.97mm), with
the immersion-ultrasound the mean value was 23.55mm±1.74mm (range
20.53mm to 33.03mm). The difference between this two methods of measurement
was 0.09mm±1.36mm. We compared the ACD of 309 eyes. Zeiss IOL-Master™
showed a mean ACD of 3.22±0.49mm, the immersionsultrasound showed
a mean ACD of 3.26±0.48mm. The difference of measurement was 0.04±0.26mm
between this both methods. Keratometry were evaluated of 248 eyes. Zeiss
IOL-Master™ showed mean values of HH1=7.77±0.32mm and HH2=7.61±0.27mm
and for ophthalmometry by Zeiss mean values of HH1=7.78±0.33mm
and HH2 =7.58±0.28mm. This means a difference of 0.004±0.16mm
for HH1 and of 0.03±0.13mm for HH2.
Conclusion: This study leads to the conclusion, that both methods
show comparable results for the data of axial length, ACD and keratometry.