Results 131 to 140 of about 234,918 (315)

New standardized visual acuity charts in hindi and gujarati

open access: yesIndian Journal of Ophthalmology, 1996
Conventional Snellen visual acuity chart has unequal difficulty score and irregular progression in letter size causing jumping effect at different visual acuity levels. There is also increase in number of letters from above downwards. Consequently one or
Khamar Bakulesh, Vyas Usha, Desai Tejas
doaj  

Predicting postoperative visual acuity in epiretinal membrane patients and visualization of the contribution of explanatory variables in a machine learning model.

open access: yesPLoS ONE
BackgroundThe purpose of this study was to develop a model that can predict the postoperative visual acuity in eyes that had undergone vitrectomy for an epiretinal membrane (ERM).
Akiko Irie-Ota   +9 more
doaj   +1 more source

Scalable Manufacturing of Radiation‐Tolerant Potentiometric Electrodes: A Systematic Transition from Laboratory to Semiautomated Fabrication

open access: yesAdvanced Engineering Materials, EarlyView.
Laboratory protocols for producing thin‐film pH electrodes for sterilized single‐use technologies have been successfully developed into a semiautomated workflow, with higher throughput and precision of membrane thickness. Accuracies are within 0.05 pH units versus ground truth, and uncertainty analysis reveals the largest sources of error to be derived
Bingyuan Zhao   +4 more
wiley   +1 more source

VISUAL ACUITY [PDF]

open access: yesBritish Journal of Ophthalmology, 1946
openaire   +2 more sources

Amplification‐Free, Sequencing‐Free, Detection of Viral RNAs with Variant Specification by Discrete Nanocounting

open access: yesAdvanced Functional Materials, EarlyView.
Integrating selective RNA shortcut, targeted gene isolation, and micro‐arrayed nanoimaging, the NanoPick‐array platform excels in detecting severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) at just 60 copies µL−1 and accurately differentiating variants at the single‐nucleotide level. It ensures 100% accuracy for samples with cycle threshold (
Zixun Wang   +9 more
wiley   +1 more source

A General Cyanine‐Based Platform for Designing Robust Dual‐Channel Near‐Infrared Fluorescent and Photoacoustic Probes

open access: yesAdvanced Functional Materials, EarlyView.
The study presents a general cyanine‐based platform CySN for designing robust dual‐channel near‐infrared fluorescent (NIRF) and photoacoustic (PA) probes with high ratiometric signals change. CySN enables the construction of highly sensitive and selective dual‐channel NIRF/PA probes for both small molecule and enzyme biomarkers (H2O2, esterase ...
Pingzhou Wu   +14 more
wiley   +1 more source

VISUAL ACUITY THRESHOLDS IN AMBLYOPES [PDF]

open access: bronze, 1963
H. Saiduzzafar, Constance M. Ruben
openalex   +1 more source

Constructing Covalent Organic Polymers through Dative B─N Bonds: Synthesis, Single Crystal Structures, and Physical Properties

open access: yesAdvanced Functional Materials, EarlyView.
Dynamic linkages are highly attractive in preparing single crystals of covalent organic polymers (COPs). Here, single crystals of two COPs CityU‐15 and CityU‐16 based on reversible B─N bonds are constructed using tetra(4‐pyridyl)tetrathiafulvalene and tetra(4‐pyridyl)porphine as monomers.
Xin Wang   +7 more
wiley   +1 more source

Vision, Visual Acuity, and Ocular Refraction of Young Men [PDF]

open access: green, 1960
Arnold Sorsby   +3 more
openalex   +1 more source

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