Results 31 to 40 of about 2,885 (209)
The geometry of trifocal curves with applications in architecture, urban and spatial planning [PDF]
Spatium, 2014 In this paper we consider historical genesis of trifocal curve as an optimal curve for solving the Fermat’s problem (minimizing the sum of distance of one point to three given points in the plane). Trifocal curves are basic plane geometric forms
Petrović Maja +2 more
doaj +1 more source
Journal of Ophthalmology, Volume 2023, Issue 1, 2023., 2023 Purpose. To evaluate the vision‐related quality of life (QOL), visual acuities, and refractive outcomes of patients with different angle lambda (λ) after a trifocal intraocular lens (IOL) implantation at Veni Vidi Eye Hospital, İstanbul, Turkey. Methods.
Sultan Kaya Ünsal +2 more
wiley +1 more source
Scientific Reports, 2022 To compare the visual outcomes and subjective experience of three intraocular lenses (IOL) implant strategies. Retrospective comparative study. This study comprised patients who underwent phacoemulsification and bilateral implantation of extended depth ...
Meiyi Zhu, Wei Fan, Guangbin Zhang
doaj +1 more source
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
Comparative analysis of visual quality between unilateral implantation of a trifocal intraocular lens and a rotationally asymmetric refractive multifocal intraocular lens [PDF]
International Journal of Ophthalmology, 2022 AIM: To compare visual quality after unilateral cataract surgery with implantation of trifocal intraocular lens (IOL) and asymmetric refractive multifocal IOL.
Na Hui +5 more
doaj +1 more source
Visual results and safety in the management of presbyopia with implantation of the panoptix trifocal intraocular lens in lens surgery [PDF]
, 2020 El objetivo de este estudio es evaluar los resultados visuales binoculares, incluyendo la calidad de visión (examinada por medio de la sensibilidad al contraste) y la satisfacción subjetiva en un grupo de pacientes implantados bilateralmente con un lente
Escaf Sales, Luis Carlos
core +1 more source
In vitro optical quality measurements of three intraocular lens models having identical platform
BMC Ophthalmology, 2017 Background With recent advances in technology and introduction of new intraocular lens (IOL) models, surgeons today have the opportunity to choose from various optical designs, which can influence the postoperative quality of vision.
Hyeck Soo Son +6 more
doaj +1 more source
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
Predictors of Photic Phenomena with a Trifocal IOL
Clinical Ophthalmology, 2021 To assess predictive factors associated with glares and halos in patients undergoing cataract surgery with PanOptix trifocal IOL implantation.Single-center retrospective study. One hundred and forty eyes from 70 patients with cataract were bilaterally implanted with a trifocal PanOptix aspherical diffractive lens between 2017 and 2019 and followed-up ...
Arnaldo Espaillat +3 more
openaire +6 more sources