The Optical Effects of Nd:YAG Laser Damage to Posterior Chamber Intraocular Lenses

Autor: C.B. James, W.H. Woon, N.A. Jacobs
Rok vydání: 1992
Předmět:
Zdroj: European Journal of Implant and Refractive Surgery. 4:87-90
ISSN: 0955-3681
DOI: 10.1016/s0955-3681(13)80372-3
Popis: Objective: To assess the change in optical resolution of PMMA intraocular lenses following Nd:YAG laser damage using a model eye system. Study Design: In-vitro experiment using a model eye with photographic assessment of the image produced before and after laser damage to the intraocular lens. Setting: Ophthalmic Department, St Thomas' Hospital, London. Main Outcome Measures: Photographic assessment of both the damage to the lens following laser treatment and the image produced by the lens prior to and following laser damage. Results: The optical resolution of the lens was not affected when using the Nd:YAG laser at powers of 1 mJ and 2 mJ. Damage by pulses of 3 mJ did reduce optical resolution. Conclusion: Nd:YAG laser capsulotomy is best accomplished using the lowest laser energy possible although this may require more pulses to achieve a clinically satisfactory result.
Databáze: OpenAIRE