Effectiveness and safety of overnight orthokeratology with Boston XO2 high-permeability lens material: A 24 week follow-up study

Contact Lens & Anterior Eye : the Journal of the British Contact Lens Association
Huey-Chuan ChengRichard Wu

Abstract

To examine the effectiveness of overnight orthokeratology lenses made with Boston XO2, highly gas-permeable lens material for the temporary correction of myopia. Myopic individuals from 9 to 62 years of age were eligible. Participants ≤ 12 years of age were required to have myopia ≤-4.00 D and astigmatism ≤ 1.50 D, and for those 13-62 years of age myopia ≤-5.00 D and astigmatism ≤ 3.00 D. All participants were required to have normal healthy eyes and not be receiving any ocular medications or systemic medications likely to affect the results of visual acuity. Participants wore the lenses for a minimum of 7h during sleep, and were evaluated on day 1 and weeks 1, 2, 4, 12, and 24. Success was defined as LogMAR ≤ 0.1. A total of 126 participants (63.5% females) with a mean age of 20.4 ± 11.5 years were recruited. Baseline LogMAR, and vertical and horizontal corneal curvature were 0.8, 7.7 mm, and 7.9 mm, respectively, in both eyes. A consistent decrease in LogMAR was noted from day 1 to week 12. The success rate increased with length of time (from 33.9% to 100% for the right eye and from 35.5% to 100% for the left eye from day 1 to week 24). No severe complications were noted. Overnight orthokeratology with lenses made of Boston X...Continue Reading

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Citations

Jan 17, 2017·Journal of Pediatric Ophthalmology and Strabismus·Xintong LiCheng Zhang
Oct 9, 2018·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Tarnveer S BhamraJiffan Li
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Nov 28, 2017·Disability and Rehabilitation·Helena Fridberg, Catharina Gustavsson
Mar 30, 2021·Contact Lens & Anterior Eye : the Journal of the British Contact Lens Association·Fiona StapletonJames S Wolffsohn

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