Effect of interface reflection in pseudophakic eyes with an additional refractive intraocular lens
Purpose To compare the surface reflections in a pseudophakic model eye with and without a monofocal additional refractive intraocular lens (add on IOL) Setting Department of Ophthalmology, Rudolf Virchow Klinikum Glauchau, Glauchau, and Experimental Ophthalmology, Saarland University, Homburg, Germany. Design Experimental study. Methods The Liou and Brennan model eye was used to determine the retinal surface reflections in a pseudophakic model eye with and without an add on IOL. The crystalline lens of the model eye was replaced by (1) a standard posterior chamber IOL (PC IOL) with a refractive power of 22.0 diopters (D) and (2) a PC IOL and an add on IOL with refractive powers of 19.0 D and 2.5 D, respectively. To theoretically estimate the impact of the reflected images to visual impression, the signal to noise ratio (SNR) was calculated under 2 conditions: without and with straylight and double reflection effects. Results Compared with the pseudophakic model eye without an add on IOL, the pseudophakic model eye with an add on IOL showed no relevant differences in the SNR under both conditions. Conclusion Findings indicate that implantation of monofocal add on IOLs will not induce relevant additional disturbing glare compared with conventional pseudophakia. Financial Disclosure Dr. Zoric is an employee of HumanOptics AG. Dr. Messner is an employee of Dr. Schmidt Intraocularlinsen GmbH and HumanOptics AG. No other author has a financial or proprietary interest in any material or method mentioned.
Journal of cataract and refractive surgery