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23 October 1997 Effect of holmium and erbium laser action on the human lens: an in-vitro study
Jan Kasprzak, Dariusz Kecik
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Proceedings Volume 3188, Laser Technology V: Applications in Medicine and Ecology; (1997) https://doi.org/10.1117/12.292856
Event: Laser Technology V, 1996, Szczecin, Poland
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.
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Jan Kasprzak and Dariusz Kecik "Effect of holmium and erbium laser action on the human lens: an in-vitro study", Proc. SPIE 3188, Laser Technology V: Applications in Medicine and Ecology, (23 October 1997); https://doi.org/10.1117/12.292856
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KEYWORDS
Erbium lasers
Holmium
In vitro testing
Absorption
Fiber optics
Laser therapeutics
Surgery
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