Journal of glaucoma · 1995
Comparative Efficacy of the SLT versus LASAG Nd: YAG Delivery Systems in Rabbits.
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Guo K L, Karp C L, Higginbotham E J, Griffin E O, Kincaid M C
Аннотация
PURPOSE: The efficacy of two types of contact transscleral Nd:YAG laser delivery systems, a synthetic sapphire-tipped laser probe connected to a Surgical Laser Technologies (SLT) laser and a quartz fiberoptic tip connected to a LASAG Microrupter III, was compared.
METHOD: A total of nine pigmented rabbits underwent transscleral LASAG cycloablation in one eye (3.2 W, 0.5 s); an additional eight rabbits underwent Surgical Laser Technologies cycloablation (3.0 W, 0.5 s).
RESULTS: The maximum difference in intraocular pressure between the experimental versus fellow eyes was - 15.09 mm Hg (+/-0.25) with the LASAG and -13.16 mm Hg (+/-3.12) with the SLT laser; in both delivery systems, this difference was achieved 4 days postoperatively. The differences between the two groups in duration of pressure reduction was not statistically significant (p = 0.83).
CONCLUSION: These data suggest that these delivery systems are equally effective in lowering intraocular pressure in rabbits. Histological changes of the ciliary processes and adjacent ocular tissue are presented.
METHOD: A total of nine pigmented rabbits underwent transscleral LASAG cycloablation in one eye (3.2 W, 0.5 s); an additional eight rabbits underwent Surgical Laser Technologies cycloablation (3.0 W, 0.5 s).
RESULTS: The maximum difference in intraocular pressure between the experimental versus fellow eyes was - 15.09 mm Hg (+/-0.25) with the LASAG and -13.16 mm Hg (+/-3.12) with the SLT laser; in both delivery systems, this difference was achieved 4 days postoperatively. The differences between the two groups in duration of pressure reduction was not statistically significant (p = 0.83).
CONCLUSION: These data suggest that these delivery systems are equally effective in lowering intraocular pressure in rabbits. Histological changes of the ciliary processes and adjacent ocular tissue are presented.