Results 51 to 60 of about 2,132 (158)

The Repeatability of Axial Length Measurements Using a Scheimpflug-based System

Journal of Ophthalmic & Vision Research, 2023
Purpose: To assess the repeatability of Pentacam AXL as a Scheimpflug-based system or measuring axial length according to the age, sex, lens type, axial length value, and type of cataract. Methods: The present study was conducted using multistage cluster
Sara Sardari, Mehdi Khabazkhoob, Ebrahim Jafarzadehpur, Akbar Fotouhi   +3 more
doaj   +1 more source

Closing the Loop in Agrivoltaics: A Radiative Cooling Coating for Synergistic Self‐Cleaning and Water Harvesting

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A nanostructured photonic‐thermal coating enables radiative‐cooling‐induced condensation and water harvesting, establishing a self‐sustaining agrivoltaics microclimate loop that transforms PV panels into active climate regulators. The integration of photovoltaic (PV) panels into agricultural landscapes (i.e., agrivoltaics) offers a promising path for ...
Saichao Dang, Abdul Rahim Siddiqui, Murali Gedda, Yuxuan Huang, Shakeel Ahmad, Jehad K. El‐Demellawi, Dan Daniel, Osman M. Bakr, Stefaan De Wolf, Hussam Qasem, Husam N. Alshareef, Qiaoqiang Gan   +11 more
wiley   +1 more source

Accuracy of swept-source optical coherence tomography based biometry for intraocular lens power calculation: a retrospective cross–sectional study

BMC Ophthalmology, 2019
Background To evaluate the accuracy of biometric measurements by a swept-source optical coherence tomography (SS–OCT) based biometry for intraocular lens (IOL) power calculation.
Youngju An, Eun-Kyoung Kang, Hyojin Kim, Min-Ji Kang, Yong-Soo Byun, Choun-Ki Joo   +5 more
doaj   +1 more source

Nanophotonic Biosensors and the Paradigm of Trans‐Scale Autonomous Bio‐Integrated Diagnostics for Addressing Health Complexities

Electron, EarlyView.
Physics‐driven advances in optical nanobiosensors for rapid, miniaturized, and point‐of‐care diagnostics for next‐generation decentralized and personalized healthcare based on sensor intelligence. ABSTRACT Public health emergencies and the escalating burden of chronic diseases necessitate a paradigm shift from centralized laboratory testing to rapid ...
Vishal Chaudhary, Harsh Sable, Sonu Sonu, Lakshita Phor, Reddicherla Umapathi, Pradeep Bhadola   +5 more
wiley   +1 more source

Repeatability of Corneal Aberrations and Ocular Biometry Measurements Using the Pentacam® AXL: A Cross-sectional Study [PDF]

Journal of Clinical and Diagnostic Research
Introduction: Accurate assessment of ocular biometry and corneal aberrations for diagnosis and therapy is crucial in many clinical settings. Devices to improve the measurements of these parameters are constantly being developed.
Meznah S almutairi, Basal H altoaimi, Rania Fahmy, Shatha I Algowaifly, May S Alenazi   +4 more
doaj   +1 more source

Unified Full‐Stokes Polarimetry and Orbital Angular Momentum Metrology Leveraging Isotropic D2NN

Laser &Photonics Reviews, EarlyView.
Here, we propose a versatile isotropic deep diffractive neural network (D2NN) framework to transcend these limitations. Our results show that, using a single phase‐only mask, the D2NN‐based detection geometry achieves an ultrahigh accuracy in full‐Stokes retrieval and an extremely low error in orbital angular momentum spectrum reconstruction, coupled ...
Shuaijie Yuan, Yinlong Luo, Jinhai Zou, Xu Zhu, Jin Yang, Yu Liu, Min Cheng, Zhongquan Nie, Bing Lei   +8 more
wiley   +1 more source

Study of impact of diabetes mellitus on anterior chamber depth as detected by partial coherence laser interferometry

Journal of Marine Medical Society, 2015
Aim: A n observational cross-sectional study conducted to analyze the impact of diabetes mellitus on anterior chamber depth. Materials and methods: 100 Consecutive diabetic patients aged 40 years and above who attended the Department of Ophthalmology of ...
S Agrawal, G Premnath
doaj   +1 more source

Invariance Properties and Measurement of Correlation Between Two Propagating or Evanescent Waves

Laser &Photonics Reviews, EarlyView.
This work analyses the strength of correlation between two propagating or evanescent plane waves generally expressed in different frames. Interferometric and nanoscattering‐based methods, respectively, are demonstrated for their measurement. The results show that the applied measure of correlation remains invariant under unitary polarization ...
Zhen Dong, Kimmo Saastamoinen, Andreas Norrman, Yahong Chen, Ari T. Friberg, Tero Setälä   +5 more
wiley   +1 more source

Transcending the Space‐Bandwidth and Lighting Trade‐Offs: A Programmable Self‐Mixing Interferometry Imager for Cross‐Scale Surface Inspection

Laser &Photonics Reviews, EarlyView.
This work reports a laser diode‐based self‐mixing interferometry imager featuring illumination‐invariance imaging, a 500 kHz pixel rate, and an 8.77 µm lateral resolution. It also features a programmable field‐of‐view and leading space‐bandwidth product that surpasses existing technologies by an order of magnitude, enabling cross‐scale workflow ...
Zhou Su, Feng Lin, Mubasher Ali, Yuanfu Tan, Wei‐Hsin Liao, Hay Wong   +5 more
wiley   +1 more source

Monitoring shallow geothermal aquifers with active‐source distributed acoustic sensing: A prognostic feasibility study on the University of Leeds Geothermal Campus

Near Surface Geophysics, EarlyView.
Abstract The United Kingdom's shallow aquifers offer significant but underdeveloped geothermal energy resource. Seismic methods can help address this by improving the understanding of aquifer heterogeneity and potentially allowing long‐term monitoring of thermal plumes.
Adam D. Booth, Roger A. Clark, Andy Nowacki, Ravi Myanger, Joseph Kelly, Sjoerd de Ridder, Arka Dyuti Sarkar, Fleur Loveridge, Richard Collier, Emma Bramham, David Healy   +10 more
wiley   +1 more source