Results 101 to 110 of about 49,396 (213)

Rotational stability of the AcrySof SA60TT toric intraocular lenses: A cohort study

BMC Ophthalmology, 2008
Background To evaluate the rotational stability of the three types of AcrySof SA60TT toric intraocular lenses (Alcon, Switzerland) in cataract surgery after the first postoperative week. Methods A retrospective study of 44 eyes in 33 patients.
Gale Richard, Signer Theo, Zuberbuhler Bruno, Haefliger Eduard   +3 more
doaj   +1 more source

Biomicroscopia ultrasónica en nuestra experiencia con lentes fáquicos Artiflex para la corrección de alta miopía The use of ultrasound biomicroscopy in our experience with Artiflex phakic lenses to correct high myopia

Revista Cubana de Oftalmología, 2010
OBJETIVO: Determinar la relación de la posición de los LIOs Artiflex implantados con las estructuras del segmento anterior en el Instituto Cubano de Oftalmología "Ramón Pando Ferrer" en el período de enero del 2006 a enero del 2008.
Yanele Ruiz Rodríguez, Armando Capote Cabrera, Eneida Pérez Candelaria, Juan Raúl Hernández Silva, Luis Curbelo Cunill, Iramis Miranda Hernández   +5 more
doaj  

Comparison of the Residual Amount of an Ophthalmic Viscosurgical Device Among Different Types of Intraocular Lens Implants in vitro

Clinical Ophthalmology
Tetsutaro Oki, Hiroshi Horiguchi, Ryo Terauchi, Hisato Gunji, Tadashi Nakano Department of Ophthalmology, The Jikei University School of Medicine, Minatoku, Tokyo, 105-8461, JapanCorrespondence: Tetsutaro Oki, Department of Ophthalmology, The Jikei ...
Oki T, Horiguchi H, Terauchi R, Gunji H, Nakano T   +4 more
doaj  

Four-flanged prolene fixation for a toric trifocal intraocular lens of the double C-Loop design in an eye with severe capsular phimosis

American Journal of Ophthalmology Case Reports, 2021
Purpose: To report a rare case of severe capsular phimosis after toric trifocal intraocular lens implantation, in a patient who was already on systemic immunosuppression and to present a modified fixation technique, based on the four-flanged prolene ...
Abdulhameed Hashim Mahmood, Mohammed Khalid Aljodaie, Anoud Faisal Alsaati   +2 more
doaj  

Roadmap on Advances in Visual and Physiological Optics [PDF]

arXiv
The field of visual and physiological optics is undergoing continuous significant advancements, driven by a deeper understanding of the human visual system and the development of cutting-edge optical technologies. This Roadmap, authored by leading experts, delves into critical areas such as corneal biomechanical properties, keratoconus, and ...
arxiv  

Lectures on Gravitational Lensing [PDF]

arXiv, 1996
These lectures give an introduction to Gravitational Lensing. We discuss lensing by point masses, lensing by galaxies, and lensing by clusters and larger-scale structures in the Universe. The relevant theory is developed and applications to astrophysical problems are discussed.
arxiv  

Stereopsis Following Implantation of Presbyopia-Correcting Intraocular Lenses: A Narrative Review

Ophthalmology and Therapy
Recent advancements in cataract surgery have broadened its scope from mere vision restoration to include correction of refractive errors and presbyopia. This evolution has introduced multifocal and extended depth-of-focus (EDOF) intraocular lenses (IOLs),
Yongyuan He, Bijun Zhu, Baojiang Li, Haidong Zou, Yingyan Ma   +4 more
doaj   +1 more source

Ocular dominance patterns and the wire length minimization: a numerical study [PDF]

arXiv, 2003
We study a mathematical model for ocular dominance patterns (ODPs) in primary visual cortex. This model is based on the premise that ODP is an adaptation to minimize the length of intra-cortical wiring. Thus we attempt to understand the existing ODPs by solving a wire length minimization problem.
arxiv  

Modeling and FEM-based Simulations of Composite Membrane based Circular Capacitive Pressure Sensor [PDF]

arXiv, 2019
In Micro-electro-mechanical Systems (MEMS) based pressure sensors and acoustic devices, deflection of a membrane is utilized for pressure or sound measurements. Due to advantages of capacitive pressure sensor over piezoresistive pressure sensors (low power consumption, less sensitive to temperature drift, higher dynamic range, high sensitivity ...
arxiv  

Synthesis about a collaborative project on “Technology Assessment of Autonomous Systems” [PDF]

The project started in 2009 with the support of DAAD in Germany and CRUP in Portugal under the “Collaborative German-Portuguese University Actions” programme.
António B. Moniz
core   +1 more source