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Laserinduzierte Hornhautläsionen beim Kaninchen

Lesions of the rabbit cornea produced by Laser Light

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Albrecht von Graefes Archiv für klinische und experimentelle Ophthalmologie Aims and scope Submit manuscript

Summary

Threshold radiant exposure of the cornea of gray rabbits was evaluated for Argon- and YAG-Laser light.

Threshold for the Argonlaser is about 15 kJ/cm2 (exposure time 200 ms to 2 s, spot size 65 μm).

For experimental and methodical reasons the value for the YAG-Laser (115 kJ/cm2) is of limited accuracy.

The healing process of supraliminal lesions of the cornea is observed clinically and histologycally up to six weeks following exposure to laser radiation.

Zusammenfassung

Mit einem YAG- und einem Argon-Laser wurden die Hornhäute lebender, grauer Kaninchen bestrahlt, um die Grenzschwellendosis beider Lasertypen für Kaninchenhornhäute zu ermitteln. Es ergab sich für den YAG-Laser mit sehr kurzen Strahlungsimpulsen eine Schwellendosis von 115 kJ/cm2. Für den Argon-Laser liegt der entsprechende Wert (bei Bestrahlungszeiten zwischen 200 ms und 2 s) bei 15 kJ/cm2. Der erste Wert hat wegen methodischer und experimenteller Schwierigkeiten nur einen orientierenden Wert.

Es wurde weiterhin der Heilungsverlauf überschwelliger Läsionen bis zu 6 Wochen nach Bestrahlung beobachtet.

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Authors and Affiliations

  1. Abteilung für Medizinische Optik der Universitäts-Augenklinik Hamburg, Deutschland

    H. Bahte & B. Rassow

Authors
  1. H. Bahte
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  2. B. Rassow
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Bahte, H., Rassow, B. Laserinduzierte Hornhautläsionen beim Kaninchen. Albrecht von Graefes Arch. Klin. Ophthalmol. 203, 57–66 (1977). https://doi.org/10.1007/BF00410047

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  • DOI: https://doi.org/10.1007/BF00410047

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