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. 1991 Jun;22(6):345-8.

A new contact neodymium:YAG laser for cyclophotocoagulation

Affiliations
  • PMID: 1896172

A new contact neodymium:YAG laser for cyclophotocoagulation

A G Iwach et al. Ophthalmic Surg. 1991 Jun.

Abstract

A newly developed compact (40 kg), self-contained contact Neodymium:YAG laser produces high-peak, high-energy (800 mJ/pulse), short (1.0 millisecond) pulses with 1 to 3 pulses/exposure. Energy is delivered via a 320-microns cleaved quartz fiber optic probe. Cyclophotocoagulation was performed in five eyes of three medium-sized Dutch-pigmented rabbits. The eyes received exposures of 1 to 3 pulses/exposure. Energy delivered ranged from 100 to 800 mJ/pulse. Histopathology revealed ciliary body disruption and hemorrhage with no damage to overlying sclera. When used for transscleral cyclodiathermy in the rabbit, the laser created significant ciliary body disruption with minimal scleral injury.

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