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Safety of high‐energy neodymium: YAG laser pulses in YAG sclerostomy
Author(s) -
March Wayne F.,
Gherezghiher Tseggai,
Shaver Robert P.,
Koss Michael C.,
Nordquist Robert E.
Publication year - 1987
Publication title -
lasers in surgery and medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.888
H-Index - 112
eISSN - 1096-9101
pISSN - 0196-8092
DOI - 10.1002/lsm.1900060620
Subject(s) - sclera , laser , corneal endothelium , cornea , ciliary body , iris (biosensor) , optics , ophthalmology , medicine , retina , materials science , physics , computer security , computer science , biometrics
YAG sclerostomy was performed in 15 eyes of nine cynomolgus monkeys. Individual pulse energies ranged between 10 and 135 millijoules. Total pulse energy ranged between 2,000 and 36,000 millijoules in order to test the extreme range of energy that might be required. Both acute effects and chronic effects were studied in the corneal endothelium, the lens capsule, the iris, the ciliary body, the retina, and the sclera. Techniques included flat preparations of the corneal endothelium, paraffin sections for light microscopy, and scanning and transmission electron microscopy. Our conclusion is that individual pulse energies of up to 135 millijoules with a total of up to 36 joules of energy are safe in monkey eyes when performing YAG sclerostomy.