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Orthokeratology: Latest Research & Reviews
Below you can find the latest independent clinical research, studies reviews, press coverage and news about Orthokeratology/Orthok.
VIDEO INTERVIEW WITH RENOWNED EXPERT
Professor Helen Swarbrick, UNSW School of Optometry and Vision Sciences, Australia
ORTHOKERATOLOGY PRESS REVIEWS
There have been many favourbale press reviews about iGO Orthok Overnight Vision Correction written by leading journalists in the UK national press. Belwo is a selection Read all news and reviews
ORTHOKERATOLOGY COSTS
The cost of Orthok treatment is similar to other premium quality contact lenses. Treatment is available as a one off annula lump sum or on a monthly annual direct debit care plan. For as little as £1.33 per day you can enjoyperfectvision 24/7 and freedom from contact lenses and glasses during the day. Orthok overnight vison correction gives you all the benefits of laser surgery without the risk. Find out more about the cost of Orthok
ORTHOKERATOLOGY: LATEST CLINICAL REASEARCH
backThis Hong Kong Study reviewed the clinical records of over 200 short-sighted children attending a local opticians over a prior period of seven years and for a sub-group of 70 children divided into those who had undergone Overnight Vision Correction (OVC) treatment with an average commencement age of 9 and those who had worn spectacles with an average commencement age of 10. After seven years, the children wearing overnight ortho-k corrective contact lenses were shown to have only a modest increase in their short-sight of just over one-third of a diopter whilst those wearing spectacles showed an increase in their short-sight of more than two diopters. This significant difference - albeit based on a retrospective study rather than a controlled clinical trial - still confirms the superior performance of OVC in slowing down or halting the further development of short-sight in children.
Objectives: To investigate retrospectively the difference in myopia progression, over about 7 years, between two groups of Hong Kong Chinese myopic children who wore overnight orthokeratology lenses or single-vision spectacles.
Methods: A total of 238 records of children wearing overnight orthokeratology lenses or single-vision spectacles from Eye'ni optical shop (Hong Kong) between January 1999 and December 2009 were reviewed. Refractive and central corneal curvature data with 6-year or a longer follow-up period of 70 patients were retrieved: 34 children (15 boys and 19 girls, aged 9.2 ± 1.8 years) wore orthokeratology lenses and 36 (20 boys and 16 girls, aged 10.2 ± 2.0 years) wore spectacles. Myopic progression was determined as the change of myopia from the baseline to the final visit.
Results: No statistically significant differences (P . 0.05) in age, central flat corneal curvatures, baseline refractive error, or follow-up period were observed between the two groups. Average myopic progression of the overnight orthokeratology contact lens cohort (-0.37 ± 0.49 D) was significantly less (P , 0.001) than of the single-vision spectacle group (-2.06 ± 0.81 D) over about 7 years.
Conclusion: Our preliminary 7-year data support the claim that overnight orthokeratology contact lenses may be a feasible clinical method for myopic progression control. Prospective and randomized investigations are warranted to overcome the limitations of this retrospective study.
Alan Kwok-hei Mok, Cindy Sin-Ting Chung Eye'ni,;Department of Anatomy,LiKaShing Faculty of Medicine, TheUniversity of Hong Kong, Hong Kong,People's republic of China
Read full article at Clinical Optometry
