Results 1 to 10 of about 60,499 (266)
Wavefront Automated Refraction Comparison of Three Different IOLs: Aspheric Monofocal and Two Enhanced Monofocal IOLs [PDF]
VisionThe objective of this study was to compare subjective manifest refraction with wavefront-based automated refraction using iTrace (ray tracing) and LadarWave (Hartmann–Shack) in eyes implanted with two enhanced monofocal intraocular lenses (IOLs) and a ...
Arthur Buffara van den Berg +6 more
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Application of Schlieren photography for visualisation of a pulsed gaseous target [PDF]
Biuletyn Wojskowej Akademii Technicznej, 2023 The article describes Schlieren photography, realised using a laser plasma as a radiationsource. Optical systems prepared for visualisation of a stationary gas outflow and a pulsed gaseoustarget, produced in an atmosphere or vacuum environment are ...
Wiktoria Rafalak +4 more
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Optical system calibration for 3D measurements in a hydrodynamic tunnel [PDF]
Компьютерная оптика, 2021 For non-contact 3D measurements in hydrodynamic tunnels by photogrammetry methods, it is necessary to refine the standard model of image formation in the camera by taking into account an effect of refraction of rays at the boundaries of optical media ...
V.A. Knyaz +2 more
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Folia Medica Indonesiana, 2021 Introduction: Management of low vision in pediatric patients with greater result can affect their quality of life than in adult low vision patients.. Retinopathy of Prematurity is the main cause of blindness in children.
Christina Aritonang
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Refraction in Media with a Negative Refractive Index [PDF]
Physical Review Letters, 2003 5 pages, 4 figures, submitted to Phys.
Foteinopoulou, S. +2 more
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Developing Flipped Classroom-based Mobile Learning Media to Teach Optical Physics
Scientiae Educatia: Jurnal Pendidikan Sains, 2020 The application of flipped classrooms-based M-learning media will make learning more planned and systematic. Therefore, students will be more enthusiastic and independent in the learning process. The study aims to design a flipped classrooms-based mobile
Setya Fery Widyastuti +1 more
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Refraction in Preschool Children in Kazanlak, Bulgaria [PDF]
Folia Medica, 2020 Introduction: The refractive state of the eye changes as the eye’s axial length increases and the cornea and lens flatten. In general, eyes are hyperopic at birth, become slightly more hyperopic until the age of 7, which at this point we see a ...
Kiril Slaveykov, Kalina Trifonova
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Journal of Space Weather and Space Climate, 2022 Different indices have been used to reflect, or monitor the ionospheric scintillation, e.g. the detrended carrier phase, σφ, S4, the rate of change of the vertical total electron content index (vROTI), as well as the ionosphere‐free linear combination ...
Zheng Yuhao +10 more
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Uniform refraction in negative refractive index materials [PDF]
Journal of the Optical Society of America A, 2015 We study the problem of constructing an optical surface separating two homogeneous, isotropic media, one of which has a negative refractive index. In doing so, we develop a vector form of Snell's law, which is used to study surfaces possessing a certain uniform refraction property, both in the near and far field cases. In the near field problem, unlike
Stachura, Eric, Gutirrez, Cristian E.
openaire +3 more sources
TNOA Journal of Ophthalmic Science and Research, 2021 Aim: To study the prevalence of computer vision syndrome (CVS) and dry eyes in computer operators. Materials and Methods: The cross-sectional study was conducted at teaching institute.
Sanjeev Verma +3 more
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