Visual function and higher order aberration after implantation of aspheric and spherical multifocal intraocular lenses:a meta-analysis [PDF]
AIM: To assess the visual outcomes of aspheric multifocal intraocular lenses (IOLs) compared with spherical multifocal IOL after cataract surgery.METHODS:Potential prospective controlled trials that comparing aspheric multifocal IOL implantation with ...
Jian-Ping Liu +4 more
doaj +1 more source
Design and modeling of corneal aberration correction with diffractive IOL based on ZEMAX
This paper estimates a specific detailed diffractive aspheric bifocal intraocular lens (IOL) used to correct and reduce corneal aberration and a patient’s standard surgical implantation.
Halah A. Hashim, Mohammed Fawzi Mohammed
doaj +1 more source
Purpose The aim of this study was to evaluate the changes in corneal asphericity (Q value) and spherical aberration after femtosecond laser in situ keratomileusis using Scheimpflug imaging.
Mohamed El-Kateb
doaj +1 more source
One-year effect of wearing orthokeratology lenses on the visual quality of juvenile myopia: a retrospective study [PDF]
Objective To study the one-year effect of wearing orthokeratology (OK) lenses on the visual quality of juvenile myopia. Methods The right eyes of 36 juvenile myopias were retrospectively studied in this work.
Yewei Yin +10 more
doaj +2 more sources
INDUCED SPHERICAL ABERRATION OF THE CORNEA AND STRESS ACCOMMODATION IN CHILDREN WITH MYOPIA
Purpose: to study the relationship between spherical aberrations of the cornea induced by orthokeratologic (OK) lenses and accommodation stress and to assess the effectiveness of treating accommodation overstrain with Irifrin BK 2.5 % in myopic patients ...
M. V. Makhova +2 more
doaj +1 more source
Effects of relative negative spherical aberration in single vision contact lens visual performance. [PDF]
Danny Kho,1 Cathleen Fedtke,1,2 Daniel Tilia,1,2 Jennie Diec,1 Jennifer Sha,1 Varghese Thomas,1 Ravi C Bakaraju1,2 1Brien Holden Vision Institute, Clinical Trial Research Centre, Sydney, NSW, Australia, 2School of Optometry and Vision Sciences ...
Kho D +6 more
europepmc +2 more sources
Purpose. To investigate corneal spherical aberration and corneal asphericity after small incision lenticule extraction (SMILE) and femtosecond laser-assisted laser in situ keratomileusis (FS-LASIK). Methods.
Hui Zhang, Yan Wang, Hua Li
doaj +1 more source
Depth of focus and visual acuity with primary and secondary spherical aberration [PDF]
It is known that the depth of focus (DOF) of the human eye can be affected by the higher order aberrations. We estimated the optimal combinations of primary and secondary Zernike spherical aberration to expand the DOF and evaluated their efficiency in ...
Collins, Michael +7 more
core +2 more sources
High-resolution imaging of zeolite with aberration-corrected transmission electron microscopy
We demonstrated high-resolution imaging of atomic columns in zeolite frameworks with spherical aberration-corrected transmission electron microscopy (AC-HRTEM). An MFI-type zeolite was observed by AC-HRTEM with optimized optical setup.
Kaname Yoshida +2 more
doaj +1 more source
Limitations of correcting spherical aberration with aspheric intraocular lenses.
NoAspheric intraocular lenses (IOLs) are designed to correct spherical aberration in pseudophakic eyes. We predict the benefit from correcting spherical aberration based on simulations and aberrometry of pseudophakic eyes implanted with spherical IOLs ...
Cox, Michael J., Dietze, Holger H.
core +4 more sources

