Results 51 to 60 of about 6,813 (261)

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 new intraocular lens marker to guide the implantation of toric intraocular lenses in small and mid-dilating pupils

Indian Journal of Ophthalmology, 2023
Insufficient pupillary dilatation is a significant challenge during cataract surgery, as it increases the risk of various intraoperative complications.
Sri Ganesh, Sheetal Brar, Anwesha Chakma
doaj   +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

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

Intraoperative capsular marking for toric intraocular lens placement

Taiwan Journal of Ophthalmology, 2020
Preoperatively, the surgeon instills two drops of 0.5% proparacaine and then marks the 0° and 180° points at the limbus using a Gentian violet marker and 26G needle edge. Intraoperatively, after phacoemulsification and irrigation and aspiration of the cortex are complete, the surgeon inspects the previously marked 0°-180° points on the limbus.
Harinder Singh Sethi, Mayuresh P Naik
openaire   +3 more sources

Driving Innovation: The Impact of National Health Policies on Optometry Research in East Asia

The International Journal of Health Planning and Management, Volume 41, Issue 1, Page 37-46, January 2026.
ABSTRACT This study examines the optometric research landscape in three East Asian countries—China, Japan, and Korea—analysing how research trends align with each country's national health strategies. By evaluating published articles and reviews from national journals between 2006 March 2025, we identify key areas of focus, including paediatric ...
Jihye Ahn, Moonsung Choi
wiley   +1 more source

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

Predictive Correction Model for Corneal Back Surface Astigmatism With IOLMaster700 Keratometry Data in a Cataractous Population

Clinical &Experimental Ophthalmology, Volume 54, Issue 1, Page 21-32, January/February 2026.
ABSTRACT Background To develop and validate various models to predict total keratometry (TK) power vector components TKC0 and TKC45 from classical keratometry (K) KC0 and KC45 based on a large dataset of pre cataract surgery IOLMaster 700 measurements.
Achim Langenbucher, Peter Hoffmann, Alan Cayless, Nóra Szentmáry, Kamran Riaz, Damien Gatinel, Oliver Findl, Seth Pantanelli, Tun Kuan Yeo, Giacomo Savini, Jascha Wendelstein   +10 more
wiley   +1 more source

Light-distortion analysis as a possible indicator of visual quality after refractive lens exchange with diffractive multifocal intraocular lenses [PDF]

, 2015
METHODS: Refractive lens exchange was performed with implantation of an AT Lisa 839M (trifocal) or 909MP (bifocal toric) IOL, the latter if corneal astigmatism was more than 0.75 diopter (D).
Alfonso, Alio, Alio, Bellucci, Bellucci, Blaylock, Braga-Mele, Cabot, Castillo-Gomez, de Vries, de Vries, de Vries, Diaz-Valle, Fernandez-Vega, Galor, Gierek-Ciaciura, Hayashi, Hoffer, Hoffmann, Hutz, Mesci, Mojzis, Ondategui, Sen, Souza, van den Berg, Vilaseca, Visser, Woodward, Zhao   +29 more
core   +1 more source

Accuracy of Toric Intraocular Lens Implantation Using Three‐Random‐Point Marking Method: A Prospective Pilot Study

Journal of Ophthalmology, Volume 2026, Issue 1, 2026.
Introduction This study aimed to compare the accuracy of three‐random‐point (TRP) marking method with the slit‐lamp horizontal meridian (SHM) marking method by using an image‐guided system in the positioning of a toric intraocular lens (IOL). Materials and Methods A total of 60 eyes of 54 patients who underwent cataract surgery were prospectively ...
Shuilian Chen, Yiliang Liu, Fulong Luo, Hongyang Zhang, Yongyi Niu, Srijoni Sengupta   +5 more
wiley   +1 more source