Myopia Control Using Orthokeratology

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Myopia Control Using Orthokeratology

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Author : Kristina Mihic
language : en
Publisher:
Release Date : 2022

Myopia Control Using Orthokeratology written by Kristina Mihic and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022 with categories.

Orthokeratology

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Author : Lee A. Farrow
language : en
Publisher:
Release Date : 1976

Orthokeratology written by Lee A. Farrow and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with Orthokeratology categories.

Myopia Control

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Author : Jeannine Gutiérrez
language : en
Publisher:
Release Date : 2015

Myopia Control written by Jeannine Gutiérrez and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with Contact lenses categories.

Indisputable research displaying the prevalence of myopia within the United States has introduced the need of finding a treatment to manage the progressive ocular condition. Many studies have focused on the method of using orthokeratology and multifocal contact lens to help to manage the progression of myopia with encouraging results. This case report will focus on the treatment of a 12 year old female patient with progressive myopia control using ProClear Multifocal contact lenses. Other topics related to myopia and its progression will be discussed within this paper in order to understand the full scope of this current trend and how it will affect the way optometrists treat their myopic patients.

Updates On Myopia

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Author : Tien Y Wong
language : en
Publisher:
Release Date : 2020-10-08

Updates On Myopia written by Tien Y Wong and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-10-08 with Medical categories.

This book is open access under a CC BY 4.0 license. This open access book discusses basic clinical concepts of myopia, prevention of progression and surgical treatments for myopia and pathological myopia. It also summarises the latest evidence and best practices for managing myopia, high myopia and its complications. Written by leading experts, the book addresses clinical diagnosis and interpretation of imaging modalities, and various complications of myopia such as glaucoma, choroidal neovascularization, retinal degeneration and cataracts. It is a valuable comprehensive resource for general and sub-specialist ophthalmologists as well as residents and ophthalmologists in training.; This work was published by Saint Philip Street Press pursuant to a Creative Commons license permitting commercial use. All rights not granted by the work's license are retained by the author or authors.

Multifocal Orthokeratology And Myopia Progression In Children

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Author : Martin Lörtscher
language : en
Publisher:
Release Date : 2014

Multifocal Orthokeratology And Myopia Progression In Children written by Martin Lörtscher and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with categories.

Optimisation Of Corneal Biomechanical Characteristics In Orthokeratology For Myopia Control

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Author : Madara Zvirgzdina
language : en
Publisher:
Release Date : 2019

Optimisation Of Corneal Biomechanical Characteristics In Orthokeratology For Myopia Control written by Madara Zvirgzdina and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with categories.

Toric Orthokeratology For Slowing Eye Elongation To See In Myopic And Astigmatic Children

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Author : Chia Chi Connie Chen
language : en
Publisher:
Release Date : 2014

Toric Orthokeratology For Slowing Eye Elongation To See In Myopic And Astigmatic Children written by Chia Chi Connie Chen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with Astigmatism categories.

Results from the right eye or the eye with higher astigmatism were reported. RESULTS: A total of 35 ortho-k and 23 control subjects successfully completed the study. The mean ?SD myopia was -2.53 ?1.31 D at baseline. Myopia was significantly reduced to -1.33 ?0.80 D (42% reduction) at the 1-overnight visit and to -0.41 ?0.43 D (81% reduction) at the 1-month visit. The mean ?SD refractive (with-the-rule) astigmatism reduced from -1.86 ?0.64 D at baseline to -0.88 ?0.59 D (54% reduction) and -0.40 ?0.39 D (79% reduction) at the 1-overnight and 1-month visits, respectively. Corneal toricity reduced from -2.28 ?0.53 D at baseline to -2.01 ?0.61 (13%) at the 1-overnight visit and -1.28 ?0.52 D (44%) at the 1-month visit. Subjects in both ortho-k and control groups demonstrated axial elongation. At the end of study, the average axial elongation was 0.31 ?0.27 mm in the ortho-k group and 0.64 ?0.31 mm in the control group. Axial elongation was significantly slower in the ortho-k group than in the control group at every 6-month visit. The levels of reduction of myopia progression compared to the spectacle-wearing control group were 61%, 58%, 53%, and 52% (cumulative elongations) after 6, 12, 18 and 24 months of ortho-k lens wear. Axial elongation was significantly correlated with the initial age of the subjects and treatment assigned. ANCOVA analysis was conducted to test the effect of ortho-k treatment on axial length increase adjusted for age and the small difference in age did not bias the effect of the treatment. Moreover, axial length elongation was not affected by gender, initial myopia, initial refractive cylinder or initial corneal toricity. Significant changes in the anterior Sim Kflat and Sim Ksteep were observed in the ortho-k group, but only at the 1-month visit. No significant changes were observed in the subsequent visits with ortho-k lens wear. In the control group, no significant changes in anterior Sim Kflat and Sim Ksteep were observed during the study period. There were no significant changes in the posterior Sim Kflat and Sim Ksteep at all visits in both ortho-k and control groups. In the ortho-k group, significant CCT thinning of 7 ?9 om was observed at the 1-month visit (p = 0.004). No significant differences in CCT were observed in the subsequent visits. No significant differences in CCT were observed at any visit during the 2-year study period in the control group. No significant changes were observed in CH at any visit for both groups of subjects. In the ortho-k group, CRF significantly reduced from an average of 10.7 ?1.4 mmHg at baseline to 10.0 ?1.4 mmHg after 1-month of lens wear (p = 0.003). Again, no significant differences were found in the subsequent visits with continued ortho-k lens wear. In the control group, no significant change in CRF was found during the study. CONCLUSIONS: The toric design ortho-k lenses used were effective for myopic reduction and astigmatic reduction. The results also demonstrated the strong potential for the toric ortho-k lenses to control myopic progression by about 50%. Myopia reduction from ortho-k treatment involved flattening of the anterior corneal curvatures with no involvement of the posterior curvatures. Corneal biomechanical properties, in terms of CH and CRF, were not useful parameters to predict the ortho-k response.

Controlling Myopia With Orthokeratology In School Aged Children

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Author : Charlie Cong Dao
language : en
Publisher:
Release Date : 2011

Controlling Myopia With Orthokeratology In School Aged Children written by Charlie Cong Dao and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Contact lenses categories.

Myopia is a condition with many treatment modalities ranging from spetacle or contact lens correction to corneal refractive surgery. Progrression of myopia in part, due to increased axial length through development. Studies have shown that it may be possible to influence the progression and prevalence of myopia by controlling the increase of axial length by inducing peripheral blur to the retina. Using a reverse geometry contact lens designed for orthokeratology can theoretically induce this blur. However the optimal time to begin this type of treatment is during the human developmental period, during which retinal cells have plasticity. Risks of microbial infection and permanent corneal insult exist when using this treatment in these patients; childhood to the early teen aged. This treatment, if successful, will begin a new revolution in the treatment and correction of myopia.

Myopia Control

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Author : Sophia La
language : en
Publisher:
Release Date : 2017

Myopia Control written by Sophia La and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with Atropine categories.

Myopia is one of the most common refractive ocular conditions of the world, and its prevalence is only increasing with time. As such, myopia has been increasingly studied over the years, with many different methods of myopia control being proposed and researched. However, there is still great debate over the efficacy of the multitudes of myopia control methods available. The aim of this review is to compile and review data in order to compare the efficacies of the most promising myopia control methods currently available, and provide practitioners with a better of the best methods to incorporate into their treatment and prevention protocols. In order to achieve this aim, a literature review study was conducted of recent research and findings regarding the most commonly accepted and studied myopia control methods currently available, including pharmacological Atropine, spectacle correcction with bifocals and PALs, contact lenses utilizing peripheral defocus, and orthokeratology. The results of this literature review were compiled from the different research articles and avaiable literature, and the myopia control methods were compared within each other. Average results from the ATOM studies for Atropine showed average refractive progression was reduced to around -0.14 diopters/year to -0.28 diopters/year. Spectacles average refractive progression was around -1.25 diopters for the 3 years, averaging out to -0.4 diopters per year. Contact lenses study results indicate that myopic refractive error progression was reduced to anywere between -0.17 to -0.4 diopters per year. And finally, orthokeratology study results results indicate that myopia progressed about -0.3 diopters per year. Compiling an average of the results regarding overall myopic diopter progression rate and axial elongation rates indicate that of the four methods evaluated, atropine has the average highest decrease in progression and axial elongation.

Updates On Myopia

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Author : Marcus Ang
language : en
Publisher: Springer Nature
Release Date : 2019-10-29

Updates On Myopia written by Marcus Ang and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-10-29 with Medical categories.

This book is open access under a CC BY 4.0 license. This open access book discusses basic clinical concepts of myopia, prevention of progression and surgical treatments for myopia and pathological myopia. It also summarises the latest evidence and best practices for managing myopia, high myopia and its complications. Written by leading experts, the book addresses clinical diagnosis and interpretation of imaging modalities, and various complications of myopia such as glaucoma, choroidal neovascularization, retinal degeneration and cataracts. It is a valuable comprehensive resource for general and sub-specialist ophthalmologists as well as residents and ophthalmologists in training.