Results 51 to 60 of about 5,711 (256)

Combined implantation of toric and spherical intraocular lenses for low corneal astigmatism correction [PDF]

, 2021
Background: This study compared outcomes of combined toric versus spherical intraocular lens (IOL) implantation in patients with low corneal astigmatism.
Albano, Valeria, Alessio, Giovanni, Palmisano, Carmela, Sborgia, Alessandra   +3 more
core   +2 more sources

Binocular function to increase visual outcome in patients implanted with a diffractive trifocal intraocular lens [PDF]

, 2015
Background: To evaluate binocular visual outcome for near, intermediate and distance compared to monocular visual outcome at the same distances in patients implanted with a diffractive trifocal intraocular lens (IOL).
Auffarth, Gerd U., Gerl, Matthias, Gerl, Ralf H., Kretz, Florian Tobias Alwin, Müller, Matthias   +4 more
core   +1 more source

Insights into the rotational stability of toric intraocular lens implantation: diagnostic approaches, influencing factors and intervention strategies

Frontiers in Medicine
Toric intraocular lenses (IOLs) have been developed to enhance visual acuity impaired by cataracts and correct corneal astigmatism. However, residual astigmatism caused by postoperative rotation of the toric IOL is an important factor affecting visual ...
Xuanqiao Lin, Xuanqiao Lin, Xuanqiao Lin, Xuanqiao Lin, Dongmei Ma, Dongmei Ma, Dongmei Ma, Jin Yang, Jin Yang, Jin Yang   +9 more
doaj   +1 more source

Comparison between clinical outcomes of two different designs of toric multifocal intraocular lenses

Medicine Science, 2018
To compare the clinical outcomes of plate haptic and open-loop haptic toric multifocal intraocular lenses (IOLs). In this retrospective, comparative clinical trial, two different designs of multifocal toric IOL were implanted in 49 eyes of 38 cases with ...
Orhan Ayar, Mehmet Cuneyt Ozmen, Serpil Yazgan, Yaran Koban   +3 more
doaj   +1 more source

Comparisons of Intraocular Lens Calculation Formulas for Eyes With Astigmatism: Systemic Review and Network Meta‐Analysis [PDF]

Journal of Ophthalmology
Purpose To compare the accuracy of different formulas for calculating toric intraocular lens (IOL) power. Methods PubMed, EBSCO, Web of Science, and the Cochrane Library were systematically searched for studies published from 2015 to 2025. Numbers of eyes with a prediction error (PE) within ±0.50 and ±1.00 diopters (D) were synthesized for the meta ...
Chen Z, Li M, Tian Z, Wan X.
europepmc   +2 more sources

Assessing the in vitro optical quality of presbyopic solutions based on the axial modulation transfer function. [PDF]

, 2016
PURPOSE: To present a metric for assessing the in vitro optical quality of rotationally symmetrical optical elements based on volume calculation under the surface defined by the axial modulation transfer function (MTF).
Alio, Artigas, Baumeister, Brigantic, Felipe, Felipe, FitzGerrell, Gatinel, Holladay, Madrid-Costa, Montes-Mico, Pepose, Petternel, Pons, Remon, Ruiz-Alcocer   +15 more
core   +2 more sources

Repeatability of keratometry depending on tear film osmolarity

Acta Ophthalmologica, EarlyView.
Abstract Purpose To determine the repeatability of keratometry and astigmatism measurements of patients depending on the tear film osmolarity using three different devices. Methods In this study, 97 eyes of 97 patients with a mean age of 64.92 ± 12.07 years received three repeated measurements with the IOLMaster 700 (Carl Zeiss Meditec, Jena, Germany),
David Schneider, Klemens Paul Kaiser, Petra Davidova, Thomas Kohnen, Tyll Jandewerth   +4 more
wiley   +1 more source

A review of angle kappa and multifocal intraocular lenses and their effect on visual outcomes

Acta Ophthalmologica, Volume 104, Issue 2, Page e122-e138, March 2026.
Abstract Although most patients are satisfied with their vision after multifocal intraocular lens (IOL) implantation, dissatisfaction has been reported for various reasons, including poor visual outcomes and visual disturbances. Many published reports hypothesise that preoperative angle kappa may be an associated factor in patient dissatisfaction ...
Thomas Kohnen, Viswanathan Ramasubramanian, Rajaraman Suryakumar   +2 more
wiley   +1 more source

Comparative evaluation of rotational stability and visual outcome of toric intraocular lenses with and without a capsular tension ring

Indian Journal of Ophthalmology, 2018
Purpose: To evaluate the rotational stability of toric intraocular lens (IOL) when co-implanted with a capsular tension ring (CTR) as compared to that of a toric IOL without a CTR.
Anju Rastogi, Samreen Khanam, Yashpal Goel, Kamlesh, Prolima Thacker, Prateek Kumar   +5 more
doaj   +1 more source

Central vault after phakic intraocular lens implantation : correlation with anterior chamber depth, white-to-white distance, spherical equivalent, and patient age [PDF]

, 2012
To compare the central postoperative vault of a phakic intraocular lens (pIOL) to correct myopia, myopic astigmatism, and hyperopia and identify ocular and lens parameters that might predict the vault amount.Supported in part by Ministerio de Ciencia e
Alfonso, José F., Fernandes, Paulo Rodrigues, Fernández-Vega, Luis, Jorge, Jorge, Lisa, Carlos, Montés-Micó, Robert   +5 more
core   +1 more source