Results 71 to 80 of about 45,422,298 (247)
The effect of soft lens lubricants on symptoms and lens dehydration
, 1991 In order to establish the efficacy of soft lens lubricants and their mode of action, we conducted a controlled, double-masked, randomized study. Symptoms of dryness as well as lens water content were assessed in 30 symptomatic hydroxyethylmethacrylate ...
Efron, Nathan +2 more
core
Self retaining contact lens system for vitreous surgery
Indian Journal of Ophthalmology, 2004 We describe the principle and design of a new self-retaining contact lens system for vitreous surgery. The system has three lenses: the plano-concave, prism and magnifying lens.
Chalam Kakarla, Shah Vinay
doaj
Development of an Aspherical Aerial Camera Optical System
IEEE Photonics Journal, 2019 The aerial camera lens largely determines the performance of the camera. It is necessary to further optimize the lens to satisfy the requirements of small-scale and lightweight aircraft camera systems.
Jieqiong Lin +4 more
doaj +1 more source
To describe the Dysfunctional Lens Index (DLI) from ray-tracing aberrometry and to test its correlations with logMAR corrected distance visual acuity (CDVA) and lens grading based on the Lens Opacities Classification System III (LOCS III) and the ...
Bernardo Lopes +12 more
core +1 more source
Simulation Analysis of an Atmospheric Turbulence Wavefront Measurement System
PhotonicsIn this paper, a turbulent wavefront measurement model based on the Hartmann system structure is proposed. The maximum recognizable mode number of different lens units is discussed, and the influence of different lens array arrangements on the accuracy ...
Gangyu Wang +6 more
doaj +1 more source
Clinical Ophthalmology, 2021 Miriam Heynen,1 Alan Ng,1 Elizabeth Martell,1 Lakshman N Subbaraman,1 Lyndon Jones1,2 1Centre for Ocular Research and Education (CORE), School of Optometry and Vision Science, University of Waterloo, Waterloo, Ontario, Canada; 2Centre for Eye and Vision ...
Heynen M +4 more
doaj
A new lens for observing fundus with a noncontact wide-angle viewing system
Clinical Ophthalmology, 2017 Mihori Kita, Yukiko Fujii, Sachiyo Hama Department of Ophthalmology, National Organization Kyoto Medical Center, Kyoto, Japan Abstract: Drying of the cornea during surgery, which causes poor visibility of the fundus, is one of the most serious problems
Kita M, Fujii Y, Hama S
doaj
Stereo Vision Meta-Lens-Assisted Driving Vision
Object detection and depth perception are key foundations of object tracking and machine navigation, facilitating a thorough perception and understanding of the surrounding environment. Currently, autonomous vehicles employ complex and bulky systems with
Din Ping Tsai (1603045) +6 more
core +1 more source
Refracting lens system for low-scatter star-tracker: A Concept [PDF]
, 1975 ''Low Scatter Lens Design/Development'' discusses studies of low-scatter lens system. Two sections cover optical design and scattering analysis for model of lens system which rejects radiation.
core
Indocyanine Green (ICG) Fluorescence-Assisted Open Surgery Using the Rubina® Lens System in the Pediatric Population: A Single-Center Prospective Case Series. [PDF]
Children (Basel), 2023 Esposito C +8 more
europepmc +1 more source