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- W2023676475 abstract "Purpose: To evaluate the ablation characteristics of an experimental erbium:YAG (Er:YAG) laser and assess whether it delivers sufficient output for performing photorefractive keratectomy. Setting: Department of Ophthalmology, Virchow-Clinics, Humboldt University, Berlin, Germany. Methods: An experimental Er:YAG laser, the erbium-chromium:YAG, running in fundamental mode was used to evaluate the energy profile. Measurements obtained using a joulemeter were compared to the ablation profiles of cadaver pig eyes. The pig eyes were treated with different fluences (mean 0.8 to 2.9 J/cm2) and, after histological preparation, were examined using light and scanning electron microscopy. Results: Measurements with the joulemeter and in the cadaver pig eyes showed a Gaussian-curved profile of energy (ablation). In the current setting, the diameter of ablation was 3.5 mm. Histological examination showed a homogeneous profile of ablation with minor thermal damage. Conclusion: The Er:YAG laser running in the fundamental mode allows homogeneous ablation of corneal tissue. The Er:YAG laser is easier to handle technically than the excimer laser and has none of the potential risks of ultraviolet light." @default.
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- W2023676475 date "1997-06-01" @default.
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- W2023676475 title "Photovaporization rate and profile of an erbium-chromium:YAG laser in the fundamental mode" @default.
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- W2023676475 doi "https://doi.org/10.1016/s0886-3350(97)80281-7" @default.
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