Results 41 to 50 of about 45,422,298 (247)

Cataract Grading in Pure Senile Cataracts: Pentacam versus LOCS III

Journal of Ophthalmic & Vision Research, 2022
Purpose: To determine the diagnostic accuracy of Pentacam Cataract Grading Scale (PCGS) versus the Lens Opacities Classification System (LOCS III) in scaling pure age-related cataract.
Mohammad Mirzaie, Erfan Bahremani, Nazli Taheri, Zhila Khamnian, Banafshe Kharrazi Ghadim   +4 more
doaj   +1 more source

Symbolic Magnifying Lens Abstraction in Markov Decision Processes [PDF]

, 2008
In this paper, we combine abstraction-refinement and symbolic techniques to fight the state-space explosion problem when model checking Markov decision processes (MDPs).
Luca de Alfaro, Parker, D., David Parker, de Alfaro, L., Pritam Roy, Norman, G., Roy, P., Gethin Norman   +7 more
core   +1 more source

Neuroprosthetic contact lens enabled sensorimotor system for point-of-care monitoring and feedback of intraocular pressure

Nature Communications
The wearable contact lens that continuously monitors intraocular pressure (IOP) facilitates prompt and early-state medical treatments of oculopathies such as glaucoma, postoperative myopia, etc.
Wei-Jia Liu, Zhijian Du, Zhong-Yi Duan, La Li, Guo-Zhen Shen   +4 more
semanticscholar   +1 more source

Effects of different contact lens materials and contact lens-wearing periods on conjunctival cytology in asymptomatic contact lens wearers

, 2008
Purpose. To investigate the conjunctival cytologic changes induced by different contact lens materials and contact lens-wearing periods in asymptomatic contact lens wearers. Methods. Seventyfive patients (150 eyes) who were to wear contact lenses for the
Tomatir, Dilek Kutlubey, Erda, Nazan, Guerlue, Vuslat Pelitli   +2 more
core   +1 more source

OPTICAL ILLUSION DESIGN BASED ON FOUR CONVEX LENSES SYSTEM AND CLOAKING AREA CHARACTERIZATION

Jurnal Pendidikan Fisika Indonesia, 2018
A set up of optical illusion based on 4f system and characterization of cloaking area have been carried out. The cloaking area is an area where the object is placed on the area as if it disappears from view; the set-up of cloaking area is located at the ...
I. T. Sugiarto, M. D. Birowosuto, I. Isnaeni, W. P. Tresna   +3 more
doaj   +1 more source

Rigid lens dynamics: Lid effects [PDF]

, 1997
PURPOSE: Lid architecture, lid tension, blink action, and blink rate may all influence rigid lens centration and stability. The aims of this study were to assess the nature of the relationship between lid geometry and lens position and to examine the ...
Carney, Leo G., Hill, Richard M., Carkeet, Andrew, Mainstone, Julia C., Quinn, Thomas G.   +4 more
core  

The Application based on Fourier Transform in Time Lens

MATEC Web of Conferences, 2016
Using the similarity between the transmission of narrow band light pulses in the dispersion media and the transmission of spatial beam in paraxial diffraction, build a time lens system similar to the space lens.
Liu Rulin, Guo Shuqin, Xu Dacai
doaj   +1 more source

Biomechanics of the human lens and accommodative system: Functional relevance to physiological states.

Progress in retinal and eye research, 2019
The ability of the human lens to accommodate is mediated by the ciliary muscle and zonule; the manifest optical power changes depend on the shape and material properties of the lens.
Ke-Hao Wang, B. Pierscionek
semanticscholar   +1 more source

The influence of center of gravity and lens mass on rigid lens dynamics [PDF]

, 1996
PURPOSE: Center of gravity and lens mass have both been shown to influence rigid lens centration and stability. The purpose of this study was to investigate the relative contributions of these two factors to rigid lens dynamics.
Carney, Leo G., Hill, Richard M., Mainstone, Julia C., Quinn, Thomas G., Carkeet, Andrew D.   +4 more
core  

Simulational investigation of self-aligned bilayer linear grating enabling highly enhanced responsivity of MWIR InAs/GaSb type-II superlattice (T2SL) photodetector

Scientific Reports
Linear gratings polarizers provide remarkable potential to customize the polarization properties and tailor device functionality via dimensional tuning of configurations.
Minseok Lee, Zahyun Ku, Seungjin Jeong, Jehwan Hwang, Junghyun Lee, Junoh Kim, Sang-Woo Kang, Augustine Urbas, Hagyoul Bae, Bongjoong Kim   +9 more
doaj   +1 more source