Results 61 to 70 of about 12,425 (219)

Novel switching mode in a vertically aligned liquid crystal contact lens [PDF]

open access: yes, 2015
Liquid crystal (LC) contact lenses are emerging as an exciting technology for vision correction. A homeotropically (vertical) aligned LC lens is reported that offers improved optical quality and simplified construction techniques over previously reported
Charman   +17 more
core   +1 more source

The War of the Pacific and Chilean public revenues: Reallocation of the tax burden and institutional change

open access: yesThe Economic History Review, EarlyView.
Abstract A substantial body of literature has considered warfare a fundamental driver of fiscal capacity. We argue that the nature of the tax base available to governments can either foster or constrain the ability and incentives of central elites to impose their legitimacy once the war is over.
Oriol Sabaté, José Peres‐Cajías
wiley   +1 more source

Scleral surgery for the treatment of presbyopia: where are we today?

open access: yesEye and Vision, 2018
Presbyopia corrections traditionally have been approached with attempts to exchange power, either at the cornea or the lens planes, inducing multifocality, or altering asphericity to impact the optical system. Treatments that affect the visual axis, such
AnnMarie Hipsley   +2 more
doaj   +1 more source

Simple multifocal lens based on liquid crystals [PDF]

open access: yes, 2017
C
De Smet, Herbert   +3 more
core   +1 more source

Navigating the Net Zero Transition: Towards Improved Effectiveness of Corporate Decarbonization Strategies

open access: yesBusiness Strategy and the Environment, Volume 35, Issue 3, Page 3774-3789, March 2026.
ABSTRACT With net zero CO2 emissions as the benchmark for mitigating the worst impacts of climate change by mid‐century, businesses are urged to deploy robust reduction measures. However, in light of increasing emissions globally, the effectiveness of current corporate decarbonization strategies remains unclear.
Linda Schenzle, Timo Busch
wiley   +1 more source

Patient and Economic Burden of Presbyopia: A Systematic Literature Review

open access: yesClinical Ophthalmology, 2020
John Berdahl,1 Chandra Bala,2 Mukesh Dhariwal,3 Jessie Lemp-Hull,4 Divyesh Thakker,5 Shantanu Jawla5 1Vance Thompson Vision, Sioux Falls, SD, USA; 2Faculty of Medicine and Health Sciences, Macquarie University, Sydney, New South Wales, Australia; 3Global
Berdahl J   +5 more
doaj  

Presbyopia surgery in phakic patients [PDF]

open access: yes, 2004
Presbyopia is characterized as a progressive age-related loss of accommodative amplitude. In recent years, attempts have been made to surgically reverse presbyopia.
Allemann, Norma, Ferraz, Caroline Amaral
core   +2 more sources

Establishing the Profile of Eye Diseases at Nkhatabay District Hospital, Malawi: A Retrospective Study

open access: yesHealth Science Reports, Volume 9, Issue 3, March 2026.
ABSTRACT Background The distribution of eye diseases differs depending on the geographical and socioeconomic context. Aim Therefore, this study analysed the pattern of eye conditions and diseases among patients at Nkhatabay District Hospital in Malawi. Methods This was a quantitative retrospective study conducted by extracting data from the outpatient ...
Mercy Gaveta   +3 more
wiley   +1 more source

Evaluation of the content validity of patient-reported outcome (PRO) instruments developed for use with individuals with phakic presbyopia, including the Near Activity Visual Questionnaire-presbyopia (NAVQ-P) and the near vision correction independence (NVCI) instrument

open access: yesJournal of Patient-Reported Outcomes, 2021
Background Presbyopia is the age-related deterioration in the ability to focus on close objects. In order to develop a patient-reported outcome (PRO) instrument to assess near vision functioning, the Near Activity Visual Questionnaire (NAVQ) was adapted ...
Sarah Bentley   +7 more
doaj   +1 more source

Temporal multiplexing with adaptive optics for simultaneous vision. [PDF]

open access: yes, 1998
We present and test a methodology for generating simultaneous vision with a deformable mirror that changed shape at 50 Hz between two vergences: 0 D (far vision) and -2.5 D (near vision).
Papadatou, E   +3 more
core   +2 more sources

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