New biological phenomena associated with laser radiation

Michael Belkin*, Michal Schwartz

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

62 Scopus citations


Low-energy laser irradiation produces significant bioeffects. These effects are manifested in biochemical, physiological and proliferative phenomena in various enzymes, cells, tissues, organs and organisms. Examples are given of the effect of He-Ne laser irradiation in preventing the post-traumatic degeneration of peripheral nerves and the postponement of degeneration of the central nervous system. The damage produced by similar radiant exposures to the corneal epithelium and endothelium is also described. It is suggested that the mechanism of laser/tissue interaction at these low levels of radiant exposure is photochemical in nature, explaining most of the characteristics of these effects. These low-energy laser bioeffects are of importance on a basic scientific level, from a laser safety aspect and as a medical therapeutic modality.

Original languageEnglish
Pages (from-to)687-690
Number of pages4
JournalHealth Physics
Issue number5
StatePublished - May 1989


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