Results 21 to 30 of about 60,557 (267)

Indices of refraction in children with pseudophakia predisposed to abnormal refractive error changes after congenital cataract extraction

Российский офтальмологический журнал, 2020
Purpose. To study refractive indices in children with a predisposition to myopia and hyperopia after congenital cataract extraction and IOL  implantation.Material  and methods.
L. S. Khamraeva, D. U. Narzullaeva, L. A. Katargina, T. B. Kruglovà   +3 more
doaj   +1 more source

EFFECT OF SOLAR ECLIPSES ON RADIOWAVE PROPAGATION IN THE TROPOSPHERE [PDF]

Радиофизика и электроника, 2015
Energy of solar eclipses significantly influences the variation of geophysical fields and leads to a change of processes in the subsystems of the Earth and to disturbance of the existing interactions between them. Observations of each solar eclipse allow
I. M. Mytsenko, D. D. Khalameyda
doaj   +1 more source

Refraction in radioastronomy [PDF]

Symposium - International Astronomical Union, 1979
In the last few years there was no paper in the astronomical literature reporting on new measurements of radioastronomical refraction. But there are some important review papers on different aspects of this topic, e.g. on the ionosphere by M.M. Komesaroff (1960) and T.
openaire   +1 more source

Essential Infantile Esotropia: A Course of Treatment From Our Experience

Frontiers in Pediatrics, 2021
Background: Essential infantile esotropia (EIE) is the most common type of childhood esotropia. Although its classical approach is surgical, less invasive techniques have been proposed as an adjunct or alternative to traditional surgery.
Stefano Pensiero, Laura Diplotti, Marianna Presotto, Luca Ronfani, Egidio Barbi, Egidio Barbi   +5 more
doaj   +1 more source

Proteomic analysis of corneal astigmatism identifies reduced apolipoprotein A-IV as a candidate biomarker

Frontiers in Medicine
IntroductionAstigmatism is a common refractive error associated with myopia, yet its molecular mechanisms remain poorly understood. This study aimed to identify and validate differentially expressed proteins (DEPs) in corneal astigmatism through a label ...
Ximin Wei, Weitao Li, Wei Zhang
doaj   +1 more source

Evaluation of Short-Term Safety and Efficacy of Myopia Correction with a Novel Posterior Chamber Phakic Intraocular Lens

Ophthalmology and Therapy
Introduction This study aims to evaluate the short-term safety and efficacy of the Loong Crystal®PR lens, a novel posterior chamber phakic intraocular lens (PIOL) that utilizes advanced optical and material designs.
Hui Zhang, Yunfei Han, Yu Yang, Ling Ling, Shu Xu, Xuying Zhu, Dikang Yang, Xian Zhang, Wentian Zhou   +8 more
doaj   +1 more source

A comparative study of knotless versus knotted transscleral suture-fixated intraocular lens implantation

Indian Journal of Ophthalmology, 2022
Purpose: To compare functional outcomes and complication rates of two scleral fixated intraocular lens implantation (SFIOL) techniques. Methods: In this retrospective study, there were 30 eyes of 30 patients who underwent SFIOL implantation for ...
Sami Yilmaz, Aysegul Mavi Yildiz, Remzi Avci   +2 more
doaj   +1 more source

A new flow chip in combination with multiphoton microscopy as a protocol for longitudinal 3D imaging of tissue calcification under shear stress

FEBS Open Bio, EarlyView.
Miniaturized flow chip platform enabling continuous perfusion and longitudinal multiphoton 3D imaging of vascular smooth muscle cell constructs under physiological flow. Brightfield imaging guides region selection, while CellTracker Green and mRuby‐labeled fetuin‐A visualize cells and mineral deposition, respectively. Magnesium supplementation markedly
Vytautas Kučikas, Aaron D. Morgan, Ignas Čiurlionis, Christian Böhm, Stefan Jockenhövel, Willi Jahnen‐Dechent, Marc A. M. J. van Zandvoort   +6 more
wiley   +1 more source

Non-traumatic bilateral corneal flap dislocation 20 years after LASIK

BMC Ophthalmology
Backgroud This report describes a case of late non-traumatic dislocation of bilateral corneal flaps, occurring 20 years after LASIK surgery. Case presentation A 52-year-old woman underwent LASIK surgery on both eyes 20 years ago.
Dakun Ren, Xiangrong Xie, Xingtong Wang, Xuming Guo   +3 more
doaj   +1 more source

Optimizing photoexcitation conditions for time‐resolved X‐ray solution scattering experiments

FEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering (TR‐XSS) is a powerful technique to visualize how proteins change their structure in real time after light activation. Selecting the right laser photoexcitation conditions—fluence, excitation geometry, and sample refresh rate—is critical to maximize the experimental signal while avoiding unwanted side effects ...
Matteo Levantino
wiley   +1 more source