Literatura científica selecionada sobre o tema "Correction de refraction"
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Artigos de revistas sobre o assunto "Correction de refraction"
Rees, W. G., e R. E. Donovan. "Refraction correction for radio-echo sounding of large ice masses". Journal of Glaciology 38, n.º 129 (1992): 302–8. http://dx.doi.org/10.1017/s0022143000003713.
Texto completo da fonteRees, W. G., e R. E. Donovan. "Refraction correction for radio-echo sounding of large ice masses". Journal of Glaciology 38, n.º 129 (1992): 302–8. http://dx.doi.org/10.3189/s0022143000003713.
Texto completo da fonteWu, Zhen, Junzhou Huo, Haidong Zhang, Fan Yang, Shangqi Chen e Zhihao Feng. "Vision Measurement Method Based on Plate Glass Window Refraction Model in Tunnel Construction". Sensors 24, n.º 1 (22 de dezembro de 2023): 66. http://dx.doi.org/10.3390/s24010066.
Texto completo da fonteOcansey, Stephen, Rufaida Amuda, Carl Halladay Abraham e Emmanuel Kwasi Abu. "Refractive error correction among urban and rural school children using two self-adjustable spectacles". BMJ Open Ophthalmology 8, n.º 1 (abril de 2023): e001202. http://dx.doi.org/10.1136/bmjophth-2022-001202.
Texto completo da fonteNováček, Ladislav Viktor, Marie Němcová, Kristýna Sičová, Kateřina Tyx, Pavel Rozsíval, Jan Němčanský e Pavel Studený. "Simultaneous Presbyopia and Astigmatism Correction with a Novel Trifocal Toric Intraocular Lens—A One-Year Follow-Up". Journal of Clinical Medicine 11, n.º 14 (19 de julho de 2022): 4194. http://dx.doi.org/10.3390/jcm11144194.
Texto completo da fonteMezad-Koursh, Daphna, Ari Leshno, Tomer Ziv-Baran e Chaim Stolovitch. "Refractive Changes Induced by Strabismus Corrective Surgery in Adults". Journal of Ophthalmology 2017 (2017): 1–8. http://dx.doi.org/10.1155/2017/2680204.
Texto completo da fonteGurmizov, Е. P., К. B. Pershin, N. F. Pashinova e А. Iu Tsygankov. "Keratorefractive Surgery for Residual Refractive Error Correction in Pseudophakic Patients". Ophthalmology in Russia 17, n.º 2 (23 de junho de 2020): 209–15. http://dx.doi.org/10.18008/1816-5095-2020-2-209-215.
Texto completo da fonteChen, Kaijian, Zongli Hu, Jihan Zhou, Ting Yu, Jie Xu, Ji Bai e Jian Ye. "Vector Analysis of the Effects of FS-LASIK and Toric ICL for Moderate to High Astigmatism Correction". Journal of Ophthalmology 2018 (25 de julho de 2018): 1–6. http://dx.doi.org/10.1155/2018/6952710.
Texto completo da fonteKasyanov, A. A. "Tactics of Two-Stage IOL Implantation in Difficult Refractive Cases". Ophthalmology in Russia 18, n.º 3 (1 de outubro de 2021): 415–21. http://dx.doi.org/10.18008/1816-5095-2021-3-415-421.
Texto completo da fonteEjukonemu, Barbie O. M. "Refracting The Diseased Eye". Bayero Journal of Nursing and Health Care 3, n.º 2 (11 de setembro de 2022): 893–97. http://dx.doi.org/10.4314/bjnhc.v3i2.9.
Texto completo da fonteTeses / dissertações sobre o assunto "Correction de refraction"
Dia, Amadou Sall. "Quantitative ultrasound imaging of human cortical bone". Electronic Thesis or Diss., Sorbonne université, 2024. https://theses.hal.science/tel-04650855.
Texto completo da fonteOsteoporosis is a disease characterized by a decrease in bone mass and an increase in porosity, weakening the bones and potentially leading to fragility fractures. Globally, one-third of women over the age of 50 and one-fifth of men aged over 50 will experience osteoporosis-related fractures, contributing to over 8.9 million fractures annually worldwide. Early detection and treatment can prevent these fractures. Several techniques have been developed to assess bone quality, with ultrasound emerging as a cost-effective, portable, and safe option. Ultrasound imaging of the cortex of long bones allows for the evaluation of bone quality by estimating cortical thickness and ultrasonic wave-speed, which are biomarkers of mechanical strength and fracture risk. However, challenges arise with increased cortical porosity in osteoporotic bone, making it difficult to detect the inner surface (endosteum) and limiting image quality. The aim of this study is to design an image reconstruction technique to enhance ultrasound images of cortical bone. This involves understanding the factors influencing image quality. Synthetic and experimental ultrasound datasets were generated to achieve this. The results demonstrate successful estimation of cortical thickness and ultrasonic wave-speed using ultrasound imaging for homogeneous cortical bone. In vivo estimation of wave-speed at the tibial cortex of healthy individuals achieved a precision of less than 3%. However, for degraded bones, increased cortical porosity and vascular pore size create speckle that obscures the visibility of the endosteal interface. A novel refraction-corrected specular beamforming algorithm was proposed to improve the visibility of the endosteal interface. Application of this algorithm to both ex vivo and in vivo datasets revealed enhanced visibility compared to traditional Delay-and-Sum (DAS) beamforming. This study provides a better understanding of factors affecting bone ultrasound image contrast and proposes considering scatterers as specular reflectors to enhance endosteal interface visibility. By evaluating the specularity of the endosteal interface, it becomes possible to potentially assess the roughness of the endosteum. This opens a way for designing new bone mechanical quality quantifiers. Bone ultrasound imaging shows promise in identifying and monitoring individuals with low cortical bone mechanical quality at risk of osteoporotic fracture
Feurer, Denis. "Géométrie 3D des lits de rivière par stéréophotogrammétrie à travers l'eau". Phd thesis, AgroParisTech, 2008. http://tel.archives-ouvertes.fr/tel-00818380.
Texto completo da fonteO'Leary, Claire Iris. "The correction of borderline refractive and heterophoric anomalies". Thesis, City, University of London, 2009. http://openaccess.city.ac.uk/17552/.
Texto completo da fonteNoma, Regina Kazumi. "Problemática da correção óptica em escolares: acesso, comparecimento, necessidade e uso de óculos". Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/5/5149/tde-07122011-131618/.
Texto completo da fonteINTRODUCTION: The lack of optical correction was recently recognized as an important cause of low vision and it seems to be an easy problem to be solved with the use of spectacles. However, it is a complex problem from its diagnosis to treatment, which includes medical assistance searching and finding, and spectacles acquisition and use. PURPOSES: To determine the frequency of optical correction need; to determine the impact of the recall of those absent in the ophthalmologic service coverage and its causes; to check the previous ophthalmologic coverage; to check the use of the prescribed optical correction and causes to neglect the use of spectacles. METHOD: An analytical cross-sectional study was conducted. Students between 7 and 10 years old of public education from Guarulhos were screened and referred to ophthalmologic exam in the Eye to Eye Campaign 2006 and 2007. RESULTS: 40.197 students were screened and 11.741 (29,2%) were referred with suspicion of visual problems. The absenteeism in the first call was 42.5% and in the recall 62.2%. The Campaign reached 73.6% of the referred students. The recall expanded the project coverage in 16.1%. The lack of guidelines (parents did not receive notification or referral guide) was the most frequent reason (35.6%) provided by parents for the non attendance, followed by work (20.6%) and disease (12.4%). The need of glasses was not related to the attendance. For 60.2% of the students, it was the first opportunity for ophthalmological exam, whereby 27.3% searched but did not have access to a medical visit. Among the 1.379 students who had already performed an exam, 48.3% used the Public Health System and 1.029 received prescription of glasses in the previous exam. From those, 899 (87.4%) made their glasses and only 590 (57.3%) were wearing glasses on the day of the exam. From the donated spectacles in the Campaign, 84.7% of the students were using the donated optical correction after one year. The estimate of optical correction need within the studied population was 6.9%. CONCLUSIONS: The uncorrected refractive error was the main cause of low visual acuity among students. The Campaign was the first opportunity of ocular exam for most of them. A significant number of parents did not take their children for ophthalmological exams, even when facilities (access, free transportation, meal, two different opportunities of free exam over the weekend and spectacle donation) were offered. For 87.1% of the absenteeism cases, the difficulties could have been overcome via improved structuring of the first call. A recall is not recommended when financial resources are low
Armstrong, Deborah. "The Role of vision and refractive correction changes in dizziness". Thesis, University of Bradford, 2018. http://hdl.handle.net/10454/16956.
Texto completo da fonteCollege of Optometrists sponsored the research with a Postgraduate Research Scholarship
Koivula, Annemari. "Long-term results of phakic refractive lenses for correction of myopia and hyperopia /". Stockholm, 2007. http://diss.kib.ki.se/2007/978-91-7357-424-2/.
Texto completo da fonteTang, Maolong. "Corneal mean curvature mapping application in laser refractive surgery /". The Ohio State University, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=osu1094593446.
Texto completo da fonteSalmon, Anne. "Higher-order aberrations in amblyopia : an analysis of pre- and post-wavefront-guided laser refractive correction". Thesis, Aston University, 2015. http://publications.aston.ac.uk/25159/.
Texto completo da fonteEarl, Thomas Anthony. "Characterisation of turbulence in an open channel flow and in a fountain with tomographic PIV". Thesis, The University of Sydney, 2014. http://hdl.handle.net/2123/12814.
Texto completo da fonteRenner, Kimberly. "Academic Performance of Oyler School Students after Receiving Spectacle Correction". The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1491593613366446.
Texto completo da fonteLivros sobre o assunto "Correction de refraction"
Epstein, Robert L. I can see!: The baby boomer's guide to corrective eye surgery. McHenry, Ill: Center for Corrective Eye Surgery, 2001.
Encontre o texto completo da fonteArmstrong, Franette. Beyond glasses!: The consumer's guide to laser vision correction. Danville, CA: UC Books, 1998.
Encontre o texto completo da fonteArmstrong, Franette. Beyond glasses!: The consumer's guide to laser vision correction. Danville, CA: UC Books, 1997.
Encontre o texto completo da fonteWang, Ming. Surgical Correction of Presbyopia: The Fifth Wave. SLACK, Incorporated, 2019.
Encontre o texto completo da fonteCleary, Georgia, Allon Barsam e Eric Donnenfeld. Refractive surgery. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780199672516.003.0004.
Texto completo da fonteRefractive keratotomy for cataract surgery and correction of astigmatism. Thorofare, NJ: SLACK, 1994.
Encontre o texto completo da fonteGuenther, B. D. Modern Optics Simplified. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780198842859.001.0001.
Texto completo da fonte(Editor), Ronald Krueger, Scott MacRae (Editor) e Raymond Applegate (Editor), eds. Wavefront Customized Visual Correction: The Quest for Super Vision II. Slack Incorporated, 2003.
Encontre o texto completo da fonteLasik Vision Correction: An Overview of Refractive Errors and Their Treatment with the Excimer Laser (Doctor Patient Series). MedWorld Publishing, 2000.
Encontre o texto completo da fonteMargetts, George. Margetts's Longitude Tables; for Correcting the Effect of Parallax and Refraction, on the Observ'd Distance Taken Between the Moon and the Sun, or a Fixed Star,. Creative Media Partners, LLC, 2018.
Encontre o texto completo da fonteCapítulos de livros sobre o assunto "Correction de refraction"
Dong, Yuhua, e Jifeng Ding. "Atmospheric Refraction Correction of Optical Measuring Single Station Using Reference GPS Data". In Advances in Mechanical and Electronic Engineering, 61–66. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-31528-2_10.
Texto completo da fonteEly, T., P. K. Predecki, X. Zhu, M. Eatough, R. Goehner e R. Lucernoni. "Measurement of the Refraction Correction for Asymmetric Grazing Incidence Xrd from Rough Surfaces and Powders". In Advances in X-Ray Analysis, 381–87. Boston, MA: Springer US, 1997. http://dx.doi.org/10.1007/978-1-4615-5377-9_42.
Texto completo da fonteGeffen, David I. "Refractive Inlays". In Surgical Correction of Presbyopia, 53–58. Boca Raton: CRC Press, 2024. http://dx.doi.org/10.1201/9781003526667-8.
Texto completo da fonteMartén, Lisa, David I. Geffen, Tracy Schroeder Swartz, Monica Youcefi, Amanda J. Setto e Paul J. Dougherty. "History of Refractive Surgery". In Surgical Correction of Presbyopia, 3–8. Boca Raton: CRC Press, 2024. http://dx.doi.org/10.1201/9781003526667-2.
Texto completo da fonteNeatrour, Kristin, Lisa Sitterson e George Waring. "Overview of Refractive Lens Exchange". In Surgical Correction of Presbyopia, 77–86. Boca Raton: CRC Press, 2024. http://dx.doi.org/10.1201/9781003526667-11.
Texto completo da fonteNevyas-Wallace, Anita, Cynthia J. Roberts, Robert Weinstock e Neel R. Desai. "Corneal-Based Astigmatism Correction". In Refractive Lens Exchange, 73–84. Boca Raton: CRC Press, 2024. http://dx.doi.org/10.1201/9781003526285-10.
Texto completo da fonteIanchulev, Sean. "Intraoperative Aberrometry". In Intraocular Lens Calculations, 673–87. Cham: Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-50666-6_45.
Texto completo da fonteKim, Eric J., e Mitchell P. Weikert. "Using Vector Analysis to Calculate Surgically Induced Astigmatism and Refractive Change". In Surgical Correction of Astigmatism, 7–20. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-56565-1_2.
Texto completo da fonteLi, Yanxing. "Corrections for Atmospheric Refraction in Precise Leveling". In Sea Surface Topography and the Geoid, 178–86. New York, NY: Springer New York, 1990. http://dx.doi.org/10.1007/978-1-4684-7098-7_20.
Texto completo da fonteGross, Erik, e Seema Somani. "Variable Spot Scanning and Wavefront-Guided Laser Vision Correction". In Aberration-Free Refractive Surgery, 171–92. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-642-18161-0_10.
Texto completo da fonteTrabalhos de conferências sobre o assunto "Correction de refraction"
Yu, Wenkang, e Fengxun Gong. "Analysis and Correction of Atmospheric Refraction Effects on MLAT". In SAE 2023 Intelligent Urban Air Mobility Symposium. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2023. http://dx.doi.org/10.4271/2023-01-7070.
Texto completo da fonteServos, James, Michael Smart e Steven L. Waslander. "Underwater stereo SLAM with refraction correction". In 2013 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2013). IEEE, 2013. http://dx.doi.org/10.1109/iros.2013.6696833.
Texto completo da fonteVerliac, M., e T. Sarniak. "Refraction correction on a sonic calibration". In 54th EAEG Meeting. European Association of Geoscientists & Engineers, 1992. http://dx.doi.org/10.3997/2214-4609.201410631.
Texto completo da fonteA. S. Al-Shuhail, A. "Refraction Statics Correction in Sand Dunes". In 68th EAGE Conference and Exhibition incorporating SPE EUROPEC 2006. European Association of Geoscientists & Engineers, 2006. http://dx.doi.org/10.3997/2214-4609.201402198.
Texto completo da fonteHolst, Roger, Stephen Jumper e Howell Pardue. "An interactive seismic refraction statics correction method". In 1985 SEG Technical Program Expanded Abstracts. SEG, 1985. http://dx.doi.org/10.1190/1.1892672.
Texto completo da fonteHou, Xichang, Zeyuan Feng e Qingpo Ma. "Joint application of refraction static correction and tomographic inversion static correction". In Beijing 2009 International Geophysical Conference and Exposition. Society of Exploration Geophysicists, 2009. http://dx.doi.org/10.1190/1.3603576.
Texto completo da fonteZhang, Haotong, Yongheng Zhao e Huoming Shi. "Atmospheric refraction effect and its correction in LAMOST". In SPIE Astronomical Telescopes + Instrumentation, editado por Jacobus M. Oschmann, Jr. SPIE, 2004. http://dx.doi.org/10.1117/12.550852.
Texto completo da fonteTao, Guo, e Zhou Ning. "The precision inspection of waves refraction correction method". In 2011 IEEE 3rd International Conference on Communication Software and Networks (ICCSN). IEEE, 2011. http://dx.doi.org/10.1109/iccsn.2011.6013860.
Texto completo da fonteMedina, L., N. Gonzalez-Salido, J. Camacho, M. Perez-Liva, J. L. Herraiz e J. M. Udias. "Refraction correction in Full Angle Spatial image Compounding". In 2016 Global Medical Engineering Physics Exchanges/Pan American Health Care Exchanges (GMEPE/PAHCE). IEEE, 2016. http://dx.doi.org/10.1109/gmepe-pahce.2016.7504650.
Texto completo da fonteHayashi, Koichi, e Hideki Saito. "Automatic correction of velocity structures in seismic refraction prospecting". In SEG Technical Program Expanded Abstracts 1996. Society of Exploration Geophysicists, 1996. http://dx.doi.org/10.1190/1.1826445.
Texto completo da fonteRelatórios de organizações sobre o assunto "Correction de refraction"
Atkinson, E. A. Regional mapping and qualitative petroleum resource assessment of the Magdalen Basin, Gulf of St. Lawrence, Quebec, Prince Edward Island, New Brunswick, Nova Scotia, and Newfoundland and Labrador. Natural Resources Canada/CMSS/Information Management, 2023. http://dx.doi.org/10.4095/331452.
Texto completo da fonteVittitoe, C. N., e R. L. Schmidt. Refractive aiming corrections for satellite observation of stars. Office of Scientific and Technical Information (OSTI), março de 1997. http://dx.doi.org/10.2172/451209.
Texto completo da fonte