Results 21 to 30 of about 1,364,074 (300)
Repeatability of in-vitro optical quality measurements of intraocular lenses with a deflectometry technique effect of the toricity [PDF]
International Journal of Ophthalmology, 2018 AIM: To evaluate the repeatability of an optical device for measuring the Zernike coefficients of toric intraocular lenses (IOLs) and assess whether its toricity has any impact in its repeatability.
Teresa Ferrer-Blasco +5 more
doaj +1 more source
Hybrid confinement of optical and mechanical modes in a bullseye optomechanical resonator [PDF]
, 2016 Optomechanical cavities have proven to be an exceptional tool to explore fundamental and technological aspects of the interaction between mechanical and optical waves.
Alegre, Thiago P. Mayer +5 more
core +2 more sources
Time-sequential Pipelined Imaging with Wavefront Coding and Super Resolution [PDF]
, 2017 Wavefront coding has long offered the prospect of mitigating optical aberrations and extended depth of field, but image quality and noise performance are inevitably reduced. We report on progress in the use of agile encoding and pipelined fusion of image
Bradburn +6 more
core +1 more source
Optical quality of the human eye [PDF]
The Journal of Physiology, 1966 1. Optical quality of the eye was measured at eight pupil sizes between 1·5 and 6·6 mm diameter by recording the faint light emerging from the eye; this light was reflected from the bright image of a thin line on the fundus.2. The nature of the fundus reflexion was examined; it was found that the fundus acts very much like a perfect diffuser while ...
F W, Campbell, R W, Gubisch
openaire +2 more sources
Batch-related sterile endophthalmitis following intravitreal injection of bevacizumab
Indian Journal of Ophthalmology, 2014 Background: To report a series of patients with sterile endophthalmitis after intravitreal bevacizumab (IVB) injection from 2 different batches of bevacizumab.
Morteza Entezari +3 more
doaj +1 more source
Pupil Function in Pseudophakia: Proximal Miosis Behavior and Optical Influence
Photonics, 2019 The pseudophakic eye lacks the ability to produce a refractive change in response to object proximity. Thus, individual anatomical features such as the pupil size play an important role in achieving functional vision levels.
Elsa Fonseca +5 more
doaj +1 more source
The efficacy of sleeve technique in primary nasolacrimal duct obstruction with a high lacrimal sac
Indian Journal of Ophthalmology, 2014 Purpose: To evaluate the efficacy of a sleeve technique during endoscopic dacryocystorhinostomy (DCR) in primary nasolacrimal duct obstruction (NLDO) patients with a high lacrimal sac.
Kyoung-Nam Kim +3 more
doaj +1 more source
Beilstein Journal of Nanotechnology, 2021 The influence of film thickness on the structural and optical properties of silicon dioxide (SiO2) and zinc oxide (ZnO) thin films deposited by radio frequency magnetron sputtering on quartz substrates was investigated.
Petronela Prepelita +2 more
doaj +1 more source
Perioperative visual loss with non-ocular surgery: Case report and review of literature
Indian Journal of Ophthalmology, 2014 Perioperative visual loss (POVL), a rare but devastating complication, has been reported after spine, cardiac, and head-neck surgeries.The various causes include ischemic optic neuropathy, central or branch retinal artery occlusion, and cortical ...
Nidhi Pandey +2 more
doaj +1 more source
, 2013 We have studied the surface quality of millimeter-scale optical mirrors produced by etching CZ and FZ silicon wafers in potassium hydroxide to expose the $\{111\}$ planes.
Cotter, J. P. +3 more
core +1 more source