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Proceedings Paper

Effect of holmium and erbium laser action on the human lens: an in-vitro study
Author(s): Jan Kasprzak; Dariusz Kecik
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Paper Abstract

We investigated the holmium and erbium lasers operating at the medium IR range, used for cataract surgery. The main advantage of these lasers action on biological structures is total absorption of radiation by superficial layers. During the study of the lens emulsification process we found that the mechanical properties of the lens nucleus were of crucial importance for the rate of emulsification. The soft lenses were fragmented and emulsified after 200-700 pulses, while the hard lens required 5000 or more pulses while complete emulsification was not achieved. The results are promising and show that the holmium and erbium lasers can be used for human lens emulsification during ECCE. For clinical purposes, however, it is necessary to construct a suitable fiberoptic tip to be used in cataract removal. It seems that lasers whose beam is in the medium IR range could be used in many ophthalmic operations.

Paper Details

Date Published: 23 October 1997
PDF: 9 pages
Proc. SPIE 3188, Laser Technology V: Applications in Medicine and Ecology, (23 October 1997); doi: 10.1117/12.292856
Show Author Affiliations
Jan Kasprzak, Medical Univ. of Warsaw (Poland)
Dariusz Kecik, Medical Univ. of Warsaw (Poland)


Published in SPIE Proceedings Vol. 3188:
Laser Technology V: Applications in Medicine and Ecology
Wieslaw Wolinski; Alfreda Graczyk, Editor(s)

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