Results 171 to 180 of about 212,491 (313)

The influence of age, gender, refractive error, and optic disc size on the optic disc configuration in Japanese normal eyes [PDF]

, 2000
Kenji Kashiwagi, Masahiro Tamura, Keitetsu Abe, Satoshi Kogure, Shigeo Tsukahara   +4 more
openalex   +1 more source

3D Printed Optics Achieves Broadband Structured Light

Advanced Optical Materials, EarlyView.
The arbitrary creation of structured light often requires complex design and fabrication steps and is largely limited to single wavelength. By leveraging off the toolkit for digital holograms, how complex amplitude modulation can be implemented as 3D printed optics in a manner that is broadband is shown, for the creation of multiwavelength forms ...
Leerin Perumal, Stefan Hengsbach, Moslem Mahdavifar, Jan Korvink, Andrew Forbes   +4 more
wiley   +1 more source

Range-error compensation for a troposphere with exponentially varying refractivity

, 1962
John J. Freeman
openalex   +1 more source

Surgical correction of refractive error [PDF]

, 2000
William Jory, D P Choyce, Michael Gilkes
openalex   +1 more source

Enabling low Threshold Laser Through an Asymmetric Tetramer Metasurface Harnessing Polarization‐Independent Quasi‐BICs

Advanced Optical Materials, EarlyView.
Light impinging from the left on a metasurface composed by active material. The metasurface shows asymmetric configuration through the non‐uniform presence of holes. The forming quasi‐BICs modes are exploited for lasing purposes. Abstract It is proposed and numerically demonstrated a novel strategy to achieve lasing generation from a dual‐band symmetry‐
Tao Wang, Weizheng Di, W. E. I. Sha, Remo Proietti Zaccaria   +3 more
wiley   +1 more source

Effective cataract surgical and refractive error coverages in the state of Qatar. [PDF]

BMC Ophthalmol
AlAshwal SM, Rabiu M, McCormick I, AlQahtani O, AlAbdulla S, Algadi H, Kokku S, Al-Thani MH.   +7 more
europepmc   +1 more source

Correction of refractive error in the Victorian population: the feasibility of "off the shelf" spectacles [PDF]

, 2001
Raj Maini, Jill Keeffe, Le Ann M. Weih, Catherine A. McCarty, Hugh R. Taylor   +4 more
openalex   +1 more source

Unidirectional Focusing of Light Using Structured Diffractive Surfaces

Advanced Optical Materials, EarlyView.
This study presents a reciprocal diffractive unidirectional focusing design based on linear and isotropic layers. A set of cascaded diffractive layers is designed using deep learning to achieve efficient forward light focusing while suppressing backward propagation across various illumination angles.
Yuhang Li, Tianyi Gan, Jingxi Li, Mona Jarrahi, Aydogan Ozcan   +4 more
wiley   +1 more source

Refractive Error and Ocular Pathology of Children Examined in an Ophthalmological Practice in Moldova. [PDF]

J Clin Med
Ziziuchin V, Horgen G, Sundling V.
europepmc   +1 more source

Refractive errors in patients with newly diagnosed diabetes mellitus

, 1969
Abdülhekim Yarbağ, Hayrullah Yazar, Mehmet Akdoğan, Ahmet Pekgör, Süleyman Kaleli   +4 more
openalex   +1 more source