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Title: Folie 1


1
International Vision Correction Research Centre
E-mailangela.ehmer_at_med.uni-heidelbergd.de
www.lasik-uni-hd.de
Evaluation of phakic irisfixated intraocular
lenses with Zeiss Visante OCT
A. Ehmer, C. Foerster, M.P. Holzer, G.U. Auffarth
The authors have no financial interests in any of
the products mentioned.
Dept. of Ophthalmology Ruprecht-Karls-University
Heidelberg Acting-chairman G. U. Auffarth, MD
2
Purpose, Methods Patients
  • Methods
  • Phakic irisfixated IOLs (Verisyse, AMO) were
    implanted to correct ametropia (Figure 1)
  • Lens position in the anterior chamber was
    measured with Zeiss Visante OCT (Figure 2)
  • ACD was measured with Zeiss IOL Master (Figure 3)
    and Oculus Pentacam HR (Figure 4)
  • Data were collected 4 to 26 months postoperatively

Purpose Visualisation and detection of lens
position of phakic intraocular lenses in the
anterior chamber of the human eye.
Patients 24 eyes of 12 patients, mean age of 38.1
5.9 years
Figure 1
Figure 3
Figure 2
Figure 4
3
Results I
Figure 5 shows the pIOL in the anterior chamber.
The distance from pIOL to corneal endothelium
magnified in Figure 6 and pIOL to cristalline
lens in Figure 7.
Figure 7
Figure 6
Figure 5
A high correlation between the preoperative
anterior chamber depth and the distance of the
phakic IOL to corneal endothelium (r 0.83) was
found (figure 8). The deeper the anterior
chamber the greater the distance between cornea
and phakic IOL.
Figure 8
4
Results II
Figure 10
Figure 9
  • The mean distance between the phakic IOL and the
    endothelium of the cornea was 2.21 0.31 mm
    (figure 9)
  • The mean distance between the natural crystalline
    lens to the phakic IOL was 0.80 0.18 mm (figure
    10)
  • High correlation was found between target
    refraction and refraction three months
    postoperatively (R 0.98) (figure11)

Figure 11
5
Conclusion
The Zeiss Visante OCT is suitable to demonstrate
IOL position in the anterior chamber of the eye.
The data analysed showed a confident implantation
without impairing the corneal endothelium over a
26 months follow up period.
  • Literatur
  • Konstantopoulos A, Hossain P, Anderson DF. Recent
    advances in ophthalmic anterior segment imaging
    a new era for ophthalmic diagnosis? Br J
    Ophthalmol. 2007 Apr91(4)551-7. Review.
  • Lavanya R, Teo L, Friedman DS, Aung HT, Baskaran
    M, Gao H, Alfred T, Seah SK, Kashiwagi K, Foster
    PJ, Aung T Comparison of anterior chamber depth
    measurements using the IOLMaster, Scanning
    Peripheral Anterior Chamber depth Analyser and
    Anterior Segment Optical Coherence Tomography. Br
    J Ophthalmol. 2007 Feb 27
  • Rabsilber TM, Khoramnia R, Auffarth GU. Anterior
    chamber measurements using Pentacam rotating
    Scheimpflug camera.J Cataract Refract Surg. 2006
    Mar32(3)456-9.
  • Wang L, Auffarth GU. White-to-white corneal
    diameter measurements using the eyemetrics
    program of the Orbscan topography system. Dev
    Ophthalmol. 200234141-6.
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