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Retinal colour duplex scanning during LASIK-ring suction with different keratomes

  • Refractive Surgery
  • Published:
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Abstract

Purpose

The purpose was to measure the blood flow velocity during the suction phase of LASIK.

Setting

University Eye Hospital, Martin-Luther-University Halle-Wittenberg, Halle, Germany.

Methods

Papillary blood flow velocity was measured by colour Doppler sonography. Suction rings of four different manufacturers were applied in 30 healthy volunteers without eye diseases all of normal blood and eye pressure. The velocity of the blood flow in the central retinal artery was measured before, during and after suction.

Results

When Hansatome (Bausch & Lomb) and M2 (Moria) rings were used, no blood flow velocity was detected during suction in 90% of all cases. These rings were compared to the SKBM standard suction ring (Alcon) and the Krumeich non-IOP ring, in which no blood was present in only 56.67% (p < 0.05) and 10% (p < 0.001) of cases respectively. Moria, Alcon and Krumeich Lasitome rings performed equally well during the recovery phase compared with the original values. An exception is the Hansatome ring (Bausch & Lomb), with lower velocities when evaluated after 30 minutes (p < 0.01).

Conclusions

During the ring suction phase of LASIK, the rings tested reduce velocity differently.

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Abbreviations

ACR syst.:

Arteria centralis retinae systolic blood flow

ACR dias.:

Arteria centralis retinae diastolic blood flow

VCR:

Vena centralis retinae

B&L:

Bausch and Lomb

SKBM:

Summit Krumeich Barraquer Microkeratome

M2:

Mikrokeratome designation of M2-Evolution 2 by Moria

non-IOP:

non-intraocular pressure

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Authors and Affiliations

  1. Klinik u. Poliklinik für Augenheilkunde der Martin-Luther-Universität Halle-Wittenberg, Ernst-Grube-Strasse 40, Halle, 06120, Germany

    S. H. Schicke & G. I. W. Duncker

  2. Klinik Dr. Krumeich, Bochum, Germany

    J. Krumeich

  3. Augenpraxisklinik, Dillenburg, Germany

    S. Scheibel

  4. Fakultät Informatik, Technische Universität, Dresden, Germany

    M. Thielscher

  5. Kapellweg 10, 8806, Bäch, Switzerland

    S. H. Schicke

Authors
  1. S. H. Schicke
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  2. J. Krumeich
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  3. G. I. W. Duncker
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  4. S. Scheibel
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  5. M. Thielscher
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Corresponding author

Correspondence to S. H. Schicke.

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No author has a financial or proprietary interest in any material or method mentioned.

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Schicke, S.H., Krumeich, J., Duncker, G.I.W. et al. Retinal colour duplex scanning during LASIK-ring suction with different keratomes. Graefes Arch Clin Exp Ophthalmol 246, 1009–1015 (2008). https://doi.org/10.1007/s00417-008-0796-5

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  • DOI: https://doi.org/10.1007/s00417-008-0796-5

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