Results 21 to 30 of about 792,287 (183)

First Results after Implantation of Hydrophilic and Hydrophobic Trifocal Intraocular Lenses: Visual and Optical Performance

Journal of Ophthalmology, 2021
Purpose. To compare postcataract surgery visual and optical performance between two trifocal intraocular lenses (IOLs) with the same optical design: a hydrophobic acrylic glistening-free IOL and a hydrophilic acrylic IOL. Methods.
Francisco Poyales, Ricardo Pérez, Israel López-Brea, Ying Zhou, Nuria Garzón   +4 more
doaj   +1 more source

Rational filter design for depth from defocus [PDF]

, 2012
The paper describes a new, simple procedure to determine the rational filters that are used in the depth from defocus (DfD) procedure previously researched by Watanabe and Nayar [4].
Joseph Raj, Alex Noel, Staunton, Richard C., Richard C. Staunton, Alex Noel Joseph Raj   +3 more
core   +1 more source

Objective and subjective evaluation of trifocal diffractive intraocular Lens after cataract extraction with phacoemulsification: a prospective clinical study

BMC Ophthalmology, 2021
Background This study aimed to assess visual outcomes, quality of vision and patients’ satisfaction of a trifocal diffractive intraocular lens after cataract surgery with phacoemulsification. Results The study included 36 eyes that underwent implantation
Ahmed A. Zein El-Dein, Ahmed Elmassry, Hazem M. El-Hennawi, Ehab F. Mossallam   +3 more
doaj   +1 more source

Clinical and quality of life data correlation with a single-optic accommodating intraocular lens

Journal of Optometry, 2013
Purpose: To examine a single-optic accommodating intraocular lens (IOL) visual performance by correlating IOL implanted eyes’ defocus curve with the intraocular aberrometric profile and the impact on the quality of life (QOL).
María L. Ramón, David P. Piñero, Francisco J. Blanes-Mompó, Rafael J. Pérez-Cambrodí   +3 more
doaj   +1 more source

Efficacy of small back optic zone design on myopia control for corneal refractive therapy (CRT): a one-year prospective cohort study

Eye and Vision, 2023
Background To investigate the control effect on the axial length elongation using corneal refractive therapy (CRT) with different optical zone diameters (BOZDs). We also sought to compare the difference in higher-order aberrations (HOAs), treatment zone (
Xuewei Li, Lili Zuo, Heng Zhao, Jie Hu, Tao Tang, Kai Wang, Yan Li, Mingwei Zhao   +7 more
doaj   +1 more source

Comparative Evaluation of the Defocus Curve of Monofocal IOL, Extended Depth of Focus IOL, and Trifocal IOL

Oftalʹmologiâ, 2023
Purpose. Comparative evaluation of the defocus curve (DC) of monofocal IOLs (MIOLs), extended depth of focus IOLs (EDОF) and trifocal IOLs (TIOLs). Patients and methods.
M. E. Konovalov, A. V. Morenko
doaj   +1 more source

Clinical outcomes with a new design in multifocal intraocular lens: a pilot study

Eye and Vision, 2020
Purpose To evaluate the clinical and visual outcomes, quality of near vision and the influence of photic phenomena in patients bilaterally implanted with a new Precizon Presbyopic multifocal intraocular lens (IOL). Methods In this prospective consecutive
Jorge L. Alió, Pilar Yébana, Mario Cantó, Ana B. Plaza, Alfredo Vega, Jorge L. Alió del Barrio, Francisco Lugo   +6 more
doaj   +1 more source

Controlling Grain Growth in Powder Bed Fusion of Yttria‐Stabilized Zirconia Using Femtosecond Lasers: Challenges and Methodological Insights

Advanced Engineering Materials, EarlyView.
Binder‐free laser powder bed fusion of 8YSZ with a femtosecond laser is used to map process windows linking scan strategy, heat accumulation, and grain growth. Time‐resolved thermography and simulations reveal thermal regimes that enable continuous, vitrified, and fine‐grained 8YSZ surface layers without absorptive additives and demonstrate ...
Markus Kühn, Sarah Kaden, Andrea Barz, Daniel Störzner, Jens Bliedtner, Andrés Fabián Lasagni   +5 more
wiley   +1 more source

Meta-analysis of defocus curves of monofocal, enhanced monofocal and extended depth of focus IOLs

BMJ Open Ophthalmology
Background/aims Recently, modified monofocal intraocular lenses (IOLs) (proposed mono plus IOLs) have emerged claiming to provide monofocal quality distance vision while enhancing intermediate distance visual performance. The purpose of this study was to
Sathish Srinivasan, Cyril Nyankerh, Jessie Hull, Rajaraman Suryakumar   +3 more
doaj   +1 more source

The Comparison of Results of Implantation in Two Groups with PanOptix IOL and Synergy IOL

Oftalʹmologiâ, 2023
Purpose: compare the results of implantation of two types of premium IOLs (Synergy and PanOptix) according to several criteria.Materials and methods. Patients were treated in the “EyeDoctor” ophthalmology clinic, Almaty, Kazakhstan.
E. M. Molokotin, Yu. I. Malakhova, I. N. Aruchidi   +2 more
doaj   +1 more source