Academic literature on the topic 'Orthokeratology'

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Journal articles on the topic "Orthokeratology"

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Bronner, Rainer. "Orthokeratologie bei Hyperopie und Presbyopie – ein Fallbeispiel." Optometry & Contact Lenses 3, no. 3 (2023): 98–105. http://dx.doi.org/10.54352/dozv.odwq3597.

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Purpose. The aim of this case report is to describe accelerated orthokeratology for hyperopia and associated presbyopia with a customized contact lens. Material and Methods. Four-curve, spherical, reverse contact lenses were fitted with the assistance of topography, simu- lation of the fluorescein pattern of the first contact lens, and analyses from the orthokeratology literature. Fitting success was determined by comparing results before the first night and after the thirtieth night after orthokeratology. Results. After thirty nights of orthokeratolgy the best unaid- ed visual acuity for distanc
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Parker, Katrina E., and Norman E. Leach. "Orthokeratology." Eye & Contact Lens: Science & Clinical Practice 42, no. 1 (2016): 56–60. http://dx.doi.org/10.1097/icl.0000000000000194.

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Cavanagh, H. Dwight. "Orthokeratology." Eye & Contact Lens: Science & Clinical Practice 30, no. 3 (2004): 119. http://dx.doi.org/10.1097/01.icl.0000133219.05247.01.

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Sun, Yuan, Lin Wang, Jing Gao, Mei Yang, and Qi Zhao. "Influence of Overnight Orthokeratology on Corneal Surface Shape and Optical Quality." Journal of Ophthalmology 2017 (2017): 1–6. http://dx.doi.org/10.1155/2017/3279821.

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Purpose. To investigate the changes of corneal surface shape and optical quality during orthokeratology. Methods. 49 eyes of 26 patients (10.63 ± 2.02 years old) who underwent overnight orthokeratology for myopia were prospectively examined. The corneal surface shape parameters, including surface regularity index (SRI) and surface asymmetry index (SAI), were attained with an OPD-III SCAN. The higher-order aberrations and higher-order Strehl ratios were calculated under a 3 mm pupil diameter before orthokeratology, 1 month, 3 months, and 6 months after orthokeratology. A P value of less than 0.
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Lee, Hyo Seok. "Clinical Characteristics of Prescribing Orthokeratology Lenses in Adult." Annals of Optometry and Contact Lens 22, no. 2 (2023): 43–47. http://dx.doi.org/10.52725/aocl.2023.22.2.43.

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Orthokeratology lenses are specially designed rigid gas-permeable lenses that are similar to corneal refractive surgery, in that they flatten the central cornea, reducing corneal curvature and correcting myopic refractive errors. While there have been numerous studies on the prescription of orthokeratology lenses for children, there have been relatively few studies regarding prescribing orthokeratology lenses for adults. Properly prescribed orthokeratology lenses can help to slow down the progression of myopia in young adults and have the advantage of alleviating visual fatigue symptoms compar
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Wyss, Michael. "Presbyopie Management mittels Orthokeratologie." Optometry & Contact Lenses 2, no. 6 (2022): 216–20. http://dx.doi.org/10.54352/dozv.kemy8599.

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Purpose. With the aging population, management of presby- opia by contact lenses has become commonplace and market penetration is growing steadily. The purpose of this article is to discuss and highlight the different approaches to presbyopic patients using orthokeratology. Material and Methods. The management of presbyopia using multifocal orthokeratology requires additional demands on the contact lens specialist as well as on the specialized laboratory. Based on the author’s experience with fitting multifocal orthokeratology contact lenses, different types of care in the field of presbyopia
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Bong, Anna. "Orthokeratologie bei hoher Myopie." Optometry & Contact Lenses 4, no. 9 (2024): 304–11. http://dx.doi.org/10.54352/dozv.dmqe4177.

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Purpose. With an increasing proportion of children with myopia especially in Asia, efforts have been made to reduce chances of preventable sight loss related to high myopia in the future. Orthokeratology lens has been used as one of the modalities not just to correct myopia, but also to slow down myopic progression and axial elongation. This case report reviews a patient with clinically significantly high myopia, whose refractive errors was partially corrected with orthokeratology lens and spectacle lenses. Material and Methods. A now 14-year-old patient with a history of fast progressing myop
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Li, Kun-Ling, Jing Wang, Heng Zhao, et al. "Use of monocular orthokeratology lenses in children with myopic anisometropia." Materials Express 13, no. 4 (2023): 605–10. http://dx.doi.org/10.1166/mex.2023.2381.

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To investigate the effect of using monocular orthokeratology lenses on the axial length and progress of anisometropia in children. We studied 30 children aged 8–12 years with myopic anisometropia who underwent monocular orthokeratology treatment. We divided them into an orthokeratology-using group (using group) and a group that did not use it (non-using group). We compared the changes in uncorrected visual acuity (UCVA), axial length, refractive error, and other parameters of both eyes before and after one year of using the orthokeratology lenses. After one year of using monocular orthokeratol
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J, Lallu, and Wood J. "Orthokeratology-A Historical Summary and Update." Open Access Journal of Ophthalmology 10, no. 1 (2025): 1–14. https://doi.org/10.23880/oajo-16000330.

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Objective: To present a comprehensive review of current and historical literature of orthokeratology treatment and lens technology. Methods: A summary of the history of orthokeratology lenses was compiled through literature research from a selection of databases. A summary of contact lens materials, corneal topography and associated lens design is presented. The history of orthokeratology is presented as well as developmental milestones since its inception. Orthokeratology appears to be a safe form of vision correction. Conclusions: Orthokeratology appears to be a safe form of contact lens cor
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Vincent, Stephen J., Pauline Cho, Ka Yin Chan, et al. "CLEAR - Orthokeratology." Contact Lens and Anterior Eye 44, no. 2 (2021): 240–69. http://dx.doi.org/10.1016/j.clae.2021.02.003.

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Dissertations / Theses on the topic "Orthokeratology"

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Yoon, Jeong Ho Optometry &amp Vision Science Faculty of Science UNSW. "Modelling outcomes from orthokeratology." Awarded By:University of New South Wales. Optometry & Vision Science, 2009. http://handle.unsw.edu.au/1959.4/40944.

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This research aimed to develop and validate a new method for calculating anterior and posterior corneal topography. The novel calculation method was then used to evaluate the influence of orthokeratology (OK) lens wear and overnight edema on posterior corneal shape, and to develop a physical model for anterior and posterior corneal shape changes during myopic overnight OK. The new method uses anterior corneal topographic data derived from the Medmont E300 corneal topographer, and total corneal thickness data measured along the horizontal corneal meridian using the Holden-Payor optical pachomet
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Alharbi, Ahmed A. Optometry &amp Vision Science Faculty of Science UNSW. "Corneal response to overnight orthokeratology." Awarded by:University of New South Wales. School of Optometry and Vision Science, 2005. http://handle.unsw.edu.au/1959.4/22515.

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Orthokeratology (OK) is the reduction, modification or elimination of myopia through application of contact lenses. With the development of high Dk/t lens materials, overnight therapy has become the modality of choice for OK. Overnight OK lens wear has been previously investigated in terms of its efficacy to reduce myopia. However, the underlying effects of overnight OK lens wear on the human cornea have received less attention. As well as the clinical efficacy of overnight OK, this study investigated the effects of overnight OK on topographical corneal thickness and the overnight corneal edem
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Goris, K. G. "Orthokeratology, binocular co-ordination and myopia control." Thesis, London South Bank University, 2017. http://researchopen.lsbu.ac.uk/2246/.

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This work investigates two key questions: ; how myopia progression control treatments impact accommodation and binocular vision function and if accommodation and binocular vision function prior to myopia control interventions has any association with the efficacy of treatment. The work is made up of four main studies. Study 1 was a review and re-analysis of a previously completed study to investigate whether there are any possible associations between accommodation and binocular vision status prior to lens wear which may impact the myopia control efficacy of orthokeratology lens treatment. The
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Choo, Jennifer Denise Optometry &amp Vision Science Faculty of Science UNSW. "Orthokeratology epithelial changes and susceptibility to microbial infection." Publisher:University of New South Wales. Optometry & Vision Science, 2008. http://handle.unsw.edu.au/1959.4/42606.

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Orthokeratology (OK) is a specialty contact lens procedure that involves the overnight wear of lenses to reshape the corneal tissue resulting in clear vision upon lens removal. Currently it is the only way of achieving clear vision without having to wear spectacles or contact lenses during the day or undergoing refractive surgery. This thesis investigated the effects of this procedure on the corneal epithelium and the potential increase in risk of microbial infection in an animal model. The cat was first established as an appropriate animal model in a pilot study to examine OK epithelial ch
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Parkinson, Annette. "Ocular biometric change in orthokeratology : an investigation into the effects of orthokeratology on ocular biometry and refractive error in an adult population." Thesis, University of Bradford, 2012. http://hdl.handle.net/10454/6328.

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Aim: This study looks at the effect of orthokeratology on a number of biometric parameters and refractive error in an adult population. Method: Forty three myopic subjects were recruited to a twelve month study into the effects of orthokeratology on ocular biometry and refractive error. Two different back surface lens designs were applied right eye) pentacurve and left eye) aspheric. The aspheric design was chosen to more closely mimic the cornea's natural shape. Anterior and posterior apical radii and p-values; corneal thickness and anterior chamber depth were measured using the Orbscan IIz;
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Jayakumar, Jaikishan Optometry &amp Vision Science Faculty of Science UNSW. "Age related variations in anterior ocular characteristics and response to short term contact lens wear." Awarded by:University of New South Wales. School of Optometry and Vision Science, 2005. http://handle.unsw.edu.au/1959.4/22443.

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The purpose of this thesis was to investigate age related variations in anterior ocular characteristics and their effect on the response to short-term (one-hour) open eye orthokeratology (OK) lens wear and overnight hydrogel lens wear. Sixty-three volunteer subjects were divided into three groups comprising children (Group I), young adults (Group II) and older adults (Group III). Anterior ocular characteristics that were measured included corneal topography with the Medmont corneal topographer, total, stromal and epithelial thickness with the Holden-Payor optical pachometer, microscopic cell c
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Nilsson, Emelie. "Changes in the intraocular pressure value, when wearing orthokeratology lenses." Thesis, University of Kalmar, School of Pure and Applied Natural Sciences, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:hik:diva-2280.

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<p>Introduction: Quite new on the Swedish market are orthokeratology lenses, used for both correction and myopia control. At the moment there are 22 practitioners in Sweden fitting orthokeratology lenses and 5 of those stands for 75 % of all fittings. Measuring the intraocular pressure in the eye is an important part of an eye- examination, because high intraocular pressure can result in glaucomatous changes. When using the orthokeratology lenses the corneal thickness changes, it decreases in the central epithelium and increases in the midperipheral stroma. The corneal thickness is affecting t
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Gifford, Paul Optometry &amp Vision Science Faculty of Science UNSW. "Short term refractive and corneal topographic changes in hyperopic orthokeratology." Publisher:University of New South Wales. Optometry & Vision Science, 2009. http://handle.unsw.edu.au/1959.4/43760.

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Although there is considerable published research on the efficacy and corneal response to orthokeratology (OK) lenses that flatten corneal curvature to correct myopia, the effects of OK lenses that attempt to steepen corneal curvature to correct hyperopia are poorly understood. This project investigated the effects of hyperopic OK lens wear on corneal shape, refraction and vision. Open-eye and closed-eye overnight studies were conducted with proprietary hyperopic OK lenses, and these led to the development of an experimental hyperopic OK lens design which allowed manipulation of individual le
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Glavine, Kristin Ann. "Using corneal characteristics to predict corneal change in overnight orthokeratology /." Adobe Acrobat Reader required to view document, 2009. http://www.neco.edu/library/theses/GlavineThesisApr09.pdf.

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Gifford, Kate L. "Binocular visual function in orthokeratology contact lens wear for myopia." Thesis, Queensland University of Technology, 2018. https://eprints.qut.edu.au/116154/1/Kate_Gifford_Thesis.pdf.

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Orthokeratology (OK) contact lenses have shown propensity for slowing down the worsening of myopia in children and young adults, with only some understanding of the mechanism. This thesis examined eye muscle coordination and focussing in OK contact lens wear; outcomes were consistent with a lower myopia progression risk and improved visual comfort compared to standard spectacles and soft contact lenses. These findings have relevance for patient acceptance, clinical management protocols and understanding OK's optical impact on the visual system of the young myope.
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Books on the topic "Orthokeratology"

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T, Kame Rodger, ed. Orthokeratology handbook. Butterworth-Heinemann, 1995.

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Orthokeratology. Elsevier, 2004. http://dx.doi.org/10.1016/b978-0-7506-4007-7.x5001-6.

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Mountford, John, David Ruston, and Trusit Dave. Orthokeratology: Principles and Practice. Butterworth-Heinemann, 2004.

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Gerowitz, Robert. Patient's Guide to Myopia Control: Presented by the American Academy of Orthokeratology and Myopia Control. Independently Published, 2019.

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Book chapters on the topic "Orthokeratology"

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Lund, Max E., Thomas R. Reim, and Richard I. T. Wu. "Myopia Progression in Orthokeratology." In Myopia Updates II. Springer Japan, 2000. http://dx.doi.org/10.1007/978-4-431-66917-3_42.

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Qu, Jia. "Clinically Effective Ways to Control the Progression of Myopia (I): Wearing Orthokeratology." In Experts' Perspectives on Medical Advances. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-99-0093-0_17.

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Cho, Pauline, and John A. Mountford. "Orthokeratology." In Refractive Surgery. Elsevier, 2007. http://dx.doi.org/10.1016/b978-0-323-03599-6.50091-2.

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Gifford, Paul. "Orthokeratology." In Contact Lens Practice. Elsevier, 2024. http://dx.doi.org/10.1016/b978-0-7020-8427-0.00030-1.

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Rinehart, John M., and Edward S. Bennett. "Orthokeratology." In Manual of Gas Permeable Contact Lenses. Elsevier, 2004. http://dx.doi.org/10.1016/b978-0-7506-7335-8.50023-1.

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Gifford, Paul. "Orthokeratology." In Contact Lens Practice. Elsevier, 2018. http://dx.doi.org/10.1016/b978-0-7020-6660-3.00032-0.

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Mountford, John. "Orthokeratology." In Contact Lenses. Elsevier, 2019. http://dx.doi.org/10.1016/b978-0-7020-7168-3.00019-2.

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RINEHART, J. "Orthokeratology." In Manual of Contact Lens Prescribing and Fitting. Elsevier, 2006. http://dx.doi.org/10.1016/b978-0-7506-7517-8.50034-1.

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Orthokeratology. Elsevier, 2004. http://dx.doi.org/10.1016/b978-0-7506-4007-7.50001-5.

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Orthokeratology. Elsevier, 2004. http://dx.doi.org/10.1016/b978-0-7506-4007-7.50002-7.

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Conference papers on the topic "Orthokeratology"

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Bullimore, Mark A., Matthew M. Marsich, Jason J. Nichols, Myhanh Nguyen, and Joseph T. Barr. "A PROSPECTIVE STUDY OF OVERNIGHT ORTHOKERATOLOGY." In Vision Science and its Applications. OSA, 1999. http://dx.doi.org/10.1364/vsia.1999.sub5.

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Mitsui, Iwane, and Yoshiya Yamada. "Changes on the corneal thickness and curvature after orthokeratology." In Biomedical Optics 2004, edited by Fabrice Manns, Per G. Soderberg, and Arthur Ho. SPIE, 2004. http://dx.doi.org/10.1117/12.529925.

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Mitsui, Iwane. "Visual analysis of orthokeratology on myopia reduction for aviators." In Ophthalmic Technologies XV. SPIE, 2005. http://dx.doi.org/10.1117/12.591452.

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Mitsui, Iwane, and Yoshida Yamada. "Indication of advanced orthokeratology as an additional treatment after refractive surgeries." In Biomedical Optics 2005, edited by Fabrice Manns, Per G. Soederberg, Arthur Ho, Bruce E. Stuck, and Michael Belkin. SPIE, 2005. http://dx.doi.org/10.1117/12.591456.

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Li, Ke, Zhiqiang He, Kai Niu, Fei Luo, and Hongxin Song. "Evaluation of Orthokeratology Lenses Fitting Using Combination of K-Means and Least Squares Algorithm." In 2018 International Conference on Network Infrastructure and Digital Content (IC-NIDC). IEEE, 2018. http://dx.doi.org/10.1109/icnidc.2018.8525705.

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