Artikel
The clinical evaluation of the IOL Master Focus in comparison to the slit-lamp pachymetry
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Autoren
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R. Beck
- Universitäts-Augenklinik Rostock
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O. Stachs
- Universitäts-Augenklinik Rostock
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H. Schneider
- Universitäts-Augenklinik Rostock
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K. Franke
- Universitäts-Augenklinik Rostock
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R. F. Guthoff
- Universitäts-Augenklinik Rostock
| Veröffentlicht: | 22. September 2004 |
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Gliederung
Text
Objective
High resolution biometry of the anterior segment is necessary for the evaluation of new lens generations based on the optical shift principle. The clinical device IOL master focus provide a non-contact biometry of the anterior segment using partial coherence interferometry. The aim of this study was to investigate the axial shift of the different IOL designs during an accommodative stimulus. These results were compared with anterior segment measurements using slit-lamp pachymetry (Jäger).
Methods
In 45 human volunteers with different IOL implants ( 1 CU, AT 45, Acri.lens 82C) anterior chamber depth measurements was performed in cycloplegia (cyclopentolate 1%) and under pharmacologically induced ciliary muscle contraction (pilocarpine 2%).
Results
Under pharmacological induced accommodation and using IOL Master Focus the mean changes in anterior chamber depth was 1 CU 0,15 mm, AT 45 0,06 mm Acri.lens 0,08 mm. Using Jaeger the changes in anterior chamber depth was 1 CU Ø 0,32 mm, AT 45 Ø 0,14 mm, Acri.lens Ø 0,19 mm.
Conclusions
Using IOL master focus and pharmacological induced accommodation the changes in anterior chamber depth are smaller than the determined values with slit-lamp pachymetry (Jaeger). The Jaeger values are in correlation with the determined accommodation amplitudes.
