Results 41 to 50 of about 376,107 (295)

Use of confocal and multiphoton microscopy for the evaluation of micro-optical components and emitters [PDF]

open access: yes, 2004
We report on the application of confocal and multiphoton microscopic techniques for the evaluation of the latest generation of micro optical components.
Choi   +9 more
core   +1 more source

Endothelial cell study in a case of Werner′s syndrome undergoing phacoemulsification and Yettrium-Aluminum-Garnet laser capsulotomy

open access: yesIndian Journal of Ophthalmology, 2012
Werner′s syndrome (WS) is a rare autosomal recessive disorder with multisystem manifestations of premature aging from the second decade of life. Cataract is one of the features of WS.
Vasudha Kemmanu   +4 more
doaj   +1 more source

Autologous Lens Capsule Flap Transplantation for Persistent Macular Holes

open access: yesJournal of Ophthalmology, 2021
Purpose. To analyze the anatomical and functional outcomes after autologous lens capsule transplantation in patients with persistent macular hole. Methods.
Sławomir Cisiecki   +2 more
doaj   +1 more source

Flat Luneberg lens based on a printed circuit with curved conductors

open access: yesФизика волновых процессов и радиотехнические системы, 2021
The use of a printed Luneberg lens is promising for powering ultra-wideband phased array antennas with full-azimuth scanning. This article describes in detail the model for constructing a flat Luneberg lens based on a printed circuit with curved ...
Konstantin A. Bykov   +3 more
doaj   +1 more source

Evaluation of the Relationship between Corneal Diameter and Lens Diameter in Children

open access: yesMedicine & Health, 2020
Primary intraocular lens (IOL) implantation has gained acceptance for management of infantile cataracts because of the advantage of reduced amblyopia risk. The aim of the study was to investigate the association between corneal diameter as measured from the white-to-white distance and natural lens diameter in children.
openaire   +1 more source

Influence of the Overall Intraocular Lens Diameter on Rotational Stability

open access: yesOphthalmic Research, 2015
<b><i>Purpose:</i></b> To evaluate the rotational stability of two intraocular lenses (IOLs) of similar design and material but with a difference of 1 mm in overall length. <b><i>Methods:</i></b> In this prospective study patients with age-related cataract were included. An IOL with an overall diameter of
Annette, Harrer   +3 more
openaire   +2 more sources

Intraocular Pressure After 2 Hours of Small-Diameter Scleral Lens Wear [PDF]

open access: yesEye & Contact Lens: Science & Clinical Practice, 2016
Objectives: Compression of episcleral veins or deformation of tissue in the Schlemm's canal beneath the landing zone of scleral lenses could elevate intraocular pressure (IOP). We examined the effect of 2 hr of small-diameter scleral lens wear on IOP.
Cherie B, Nau   +3 more
openaire   +2 more sources

Factors having implications on re-retinal detachments after silicone oil removal

open access: yesIndian Journal of Ophthalmology, 2012
Aim: To investigate factors having implications on re-retinal detachments (reRD) after silicone oil removal (SOR). Materials and Methods: A retroprospective study of 412 eyes (with attached retina after vitrectomy with silicone oil for rhegmatogenous RD)
Manish P Nagpal   +2 more
doaj   +1 more source

Time-delay Cosmography: Increased Leverage with Angular Diameter Distances

open access: yes, 2016
Strong lensing time-delay systems constrain cosmological parameters via the so-called time-delay distance and the angular diameter distance to the lens. In previous studies, only the former information was used.
Huterer, Dragan   +3 more
core   +1 more source

Mode Transforming Properties of Tapered Single-Mode Fiber Microlenses [PDF]

open access: yes, 1993
The Gaussian approximation that is typically used to estimate single-mode fiber microlens performance is investigated. It is applied to hemispheric lenses on two types of tapered single-mode fiber. Theoretical and experimental results are compared.
Barnard, Chris W., Lit, John W.Y.
core   +2 more sources

Home - About - Disclaimer - Privacy