De- und regenerative Prozesse an der Iris des pigmentierten Kaninchenauges nach Bestrahlung mit der Xenonbogenlampe bei unterschiedlichen Pulsenergien*
| Autor: | E. van der Zypen, A. Wechsler, H. Portmann, Franz Fankhauser |
|---|---|
| Rok vydání: | 1980 |
| Předmět: |
Materials science
Pulse (signal processing) business.industry Perforation (oil well) chemistry.chemical_element Connective tissue Rabbit (nuclear engineering) law.invention Ophthalmology Xenon medicine.anatomical_structure Optics Nuclear magnetic resonance chemistry law medicine Irradiation Xenon arc lamp Iris (anatomy) business |
| Zdroj: | Klinische Monatsblätter für Augenheilkunde. 176:504-508 |
| ISSN: | 1439-3999 0023-2165 |
| DOI: | 10.1055/s-2008-1057486 |
| Popis: | The morphological condition of the pigmented rabbit iris following irradiation with a Xenon arclamp at four different pulse energies was analyzed. It was shown that: 1. There is a direct relationship between the applied pulse energy and the extent, as well as the rate, of secondary-degenerative transformations. 2. Secondary-degenerative and repair processes occur simultaneously. 3. As opposed to the primary damage event, secondary degeneration appears to progress from the back to the front of the iris. 4. As a rule, pulse energies of less than 1 Joule do not lead to secondary perforation of the iris. Fifteen weeks, after the damage event, regeneration of connective tissue and the larger blood vessels, as well as of myelinated and unmyelinated nerves may be found. 5. The inducing factors, as well as those sustaining the process of secondary degeneration after irradiation of the rabbit iris with high pulse energies, cannot be explained on the basis of morphological findings alone. |
| Databáze: | OpenAIRE |
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