Results 31 to 40 of about 4,948 (216)
Diagnostics, 2023 We evaluated the optical quality of two approaches to trifocality: polypseudophakia versus monopseudophakia. The combination (polypseudophakia) of a monofocal Basis Z B1AWY0 and AddOn Trifocal A4DW0M intraocular lens (IOL) was compared to using one Basis
Ramin Khoramnia +4 more
doaj +1 more source
Outcomes after Trifocal Femoral Fractures [PDF]
Case Reports in Surgery, 2014 Trifocal femur fractures are those of the femoral neck, diaphysis, and distal femur. These high-energy injuries predominantly occur in young people with the potential for long-term complications and disability. We present the cases of two men who were treated with proximal dynamic hip screws and distal periarticular locking plates to effectively manage
Michelle Griffin +2 more
openaire +3 more sources
Visual Servoing with Trifocal Tensor [PDF]
2018 IEEE Conference on Decision and Control (CDC), 2018 In this paper, a trifocal tensor-based approach is developed for 6 degrees-of-freedom visual servoing. The trifocal tensor model among the current, desired, and initial views is introduced to describe the geometric relationship. Then, the tensor elements are refined to construct the visual feedback without resorting to explicit estimation of the camera
Zhang, Kaixiang +2 more
openaire +2 more sources
Patient-Perceived and Laboratory-Measured Halos Associated with Diffractive Bifocal and Trifocal Intraocular Lenses [PDF]
, 2017 Purpose: To examine and assess the halos generated in distance vision by multifocal intraocular lenses (IOLs) using both in vitro objective and in vivo subjective methods.
Alba Bueno, Francisco +4 more
core +4 more sources
A new trifocal corneal inlay for presbyopia [PDF]
Scientific Reports, 2021 AbstractCorneal inlays (CIs) are the most recent surgical procedure for the treatment of presbyopia in patients who want complete independence from the use of glasses or contact lenses. Although refractive surgery in presbyopic patients is mostly performed in combination with cataract surgery, when the implantation of an intraocular lens is not ...
Furlan, Walter D. +4 more
openaire +5 more sources
Comparison of visual outcomes with implantation of trifocal versus bifocal intraocular lens after phacoemulsification: a Meta-analysis [PDF]
International Journal of Ophthalmology, 2018 AIM: To compare a trifocal intraocular lens (IOL) and a bifocal IOL implantation in improving visual function after cataract surgery. METHODS: Eligible literatures were systematically searched through EMBASE and PubMed databases.
Juan-Juan Yang +3 more
doaj +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 +15 more
core +2 more sources
Proceedings on Seventh International Conference on Information Visualization, 2003. IV 2003., 2004 Image morphing allows smooth transition between 2D images. However, one of the limitations of existing image morphing techniques is the lack of interaction - the viewpoints of the interpolated images are restrained to the line joining the optical centers of the source and the destination images.
SIU, Angus M. K. +3 more
openaire +3 more sources
Short term visual outcomes of a new trifocal intraocular lens [PDF]
, 2017 Background: Today, patients often expect to achieve spectacle independance after cataract surgery. New trifocal intraocular lenses have been developed to try and fullfill this demand.
Blázquez Sánchez, Vanesa +4 more
core +3 more sources
Impact of Trifocal and Trifocal Toric Intraocular Lenses on Spectral-domain OCT Retinal Measurements [PDF]
Journal of Glaucoma, 2020 Precis: Monofocal, trifocal, and trifocal toric intraocular lenses (IOLs) induce similar changes on overall retinal optical coherence tomography (OCT) measurements. Purpose: The purpose of this study was to assess whether trifocal and trifocal toric IOLs affect the measurement of ...
Rementería Capelo, Laureano A +4 more
openaire +4 more sources