the impact of multifocal IOL decentration and tilt on retinal image quality.Methods A series of patients implanted with multifocal IOLs were evaluated with a Scheimpflug imaging device (GALILEI Dual Scheimpflug Analyzer, Ziemer Switzerland), that was utilised to evaluate centration and tilt of the ...
Quality of image of grating target placed in vitreous of isolated pig eyes photographed through different implanted multifocal intraocular lenses. Purpose: To determine the quality of the image of a grating target placed in the vitreous of isolated pig eyes and photographed through implanted refractiv....
Multifocal versus monofocal intraocular lenses after cataract extraction Good unaided distance visual acuity is now a realistic expectation following cataract surgery and intraocular lens (IOL) implantation. Near vision, however... D Calladine,JR Evans,S Shah,... - 《Cochrane Database of Systematic ...
Multifocal IOLExtended depth of focusAccommodative IOLBackground:To study and compare the clinical optical image quality following implantation with different premium IOLs by analysing the point spread function(PSF)Strehl ratio using a pyramidal wavefront sensor(PWS)-based aberrometer.Methods:This study ...
The MTF of the one refractive multifocal IOL and two hybrid refractive-diffractive multifocal IOLs is measured for both distance focus and near focus and using different pupil sizes. Results: The average modulation (AM) from 0 to 100 c/mm of multifocal IOLs (for the distance focus) is about...
The contrasts of the gratings were evaluated under endoillumination and compared to those obtained through a monofocal IOL. The images were clear when viewed with flat contact lens through the central far-vision zone of refractive multifocal IOLs although those through the near-vision zone were ...
摘要: We propose a binocular stereo method which is optimized for reconstructing surface detail and exploits the high image resolutions of current digital cameras. Our method occupies a middle ground bet...关键词: 3D reconstruction Image-based modeling Interaction in 3D reconstruction Optimization ...
To evaluate the quality of the image of a grating target placed in a model eye viewed through multifocal intraocular lenses (IOLs). Laboratory investigation. Refractive (NXG1 or PY60MV) or diffractive (ZM900 or SA60D3) multifocal IOLs were placed in a fluid-filled model eye with human ...
The single-optic accommodating IOL and monofocal IOL performed similarly; however, with a 3.0 mm pupil, the former had better intermediate (1.50 D) image quality. The multifocal IOLs had bimodal through-focus image quality trends. Corneal astigmatism reduced through-focus image quality and depth ...
A multifocal IOL, which splits the light energy continuum between multiple foci and loses some energy to higher diffractive orders, outperforming a monofocal IOL is perplexing, especially considering (as the authors point out) that clinical studies contradict this finding.Pepose JS...