Results 21 to 30 of about 102,275 (261)

Correlation of Axial Length, Lens Thickness, and Anterior Chamber Depth in Patients Undergoing Cataract Surgery

open access: yesNigerian Journal of Medicine, 2022
Background: Axial length, lens thickness and anterior chamber diameter are valuable parameters used in determining the refractive status of the eye.
Ernest Ikechukwu Ezeh   +2 more
doaj   +1 more source

Study of the Biological Developmental Characteristics of the Eye in Children After Laser Surgery for the Treatment of Retinopathy of Prematurity

open access: yesFrontiers in Medicine, 2022
ObjectiveTo observe the differences in ocular biology between premature infants who had undergone retinal laser photocoagulation (LP) for retinopathy of prematurity (ROP) and full-term infants and to investigate the relationships between these ...
Xianlu Zeng   +8 more
doaj   +1 more source

Axial length, anterior chamber depth and lens thickness: Their intercorrelations in black South Africans

open access: yesAfrican Vision and Eye Health, 2017
Purpose: To determine means and ranges for axial length, anterior chamber depth, lens thickness values and their intercorrelations in an African population.
Khathutshelo P. Mashige   +1 more
doaj   +1 more source

Qualitative and quantitative evaluation of acute angle-closure mechanisms

open access: yesBMC Ophthalmology, 2017
Background To evaluate ocular biometric parameters in different subtypes of acute angle closure and compared to fellow eyes of AAC and PACS eyes. Methods This is a retrospective chart review study.
Yanin Suwan   +5 more
doaj   +1 more source

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

open access: yesFEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Duplex Stainless Steel Laser‐Surface Textured: Stability in Brine Solution

open access: yesAdvanced Engineering Materials, EarlyView.
Controlled laser‐surface treatment (LST) of duplex DSS2205 steel is performed to increase its stability in brine solution under cyclic electrochemical assays. The superior protection with respect to flat and smooth panels is attributed to the presence of FeCr2O4 as the main protective oxide layer in the LST surface, after corrosion tests. The stability
Mohammad Rezayat   +5 more
wiley   +1 more source

Advancing Research on Biomaterials and Biological Materials with Scanning Electron Microscopy under Environmental and Low Vacuum Conditions

open access: yesAdvanced Engineering Materials, EarlyView.
Herein, environmental scanning electron microscopy (ESEM) is discussed as a powerful extension of conventional SEM for life sciences. By combining high‐resolution imaging with variable pressure and humidity, ESEM allows the analysis of untreated biological materials, supports in situ monitoring of hydration‐driven changes, and advances the functional ...
Jendrian Riedel   +6 more
wiley   +1 more source

Corneal changes in soft contact lens wearers

open access: yesJournal of Clinical Ophthalmology and Research, 2016
There is abundance of physiological and pathological evidence of individual variations in response to soft contact lens wear. Purpose of the study was to observe and to measure changes in corneal curvature, corneal endothelium, corneal thickness and tear-
Reshma Ramakrishnan   +2 more
doaj   +1 more source

Changes in Lens Thickness and Amplitude of Accommodation with Age [PDF]

open access: yesInternational Journal of Anatomy Radiology and Surgery, 2020
Introduction: The human crystalline lens is a transparent, biconvex structure in the eye that, along with the cornea, helps to refract light to be focused on the retina and, by changing shape, it adjusts focal distance and this function of the lens is
Farah Maqsood, Wafa Abdullah Alyahya
doaj   +1 more source

Multimodal Mechanical Testing of Additively Manufactured Ti6Al4V Lattice Structures: Compression, Bending, and Fatigue

open access: yesAdvanced Engineering Materials, EarlyView.
In this experimental study, the mechanical properties of additively manufactured Ti‐6Al‐4V lattice structures of different geometries are characterized using compression, four point bending and fatigue testing. While TPMS designs show superior fatigue resistance, SplitP and Honeycomb lattice structures combine high stiffness and strength. The resulting
Klaus Burkart   +3 more
wiley   +1 more source

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