کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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2693599 | 1143557 | 2013 | 7 صفحه PDF | دانلود رایگان |
PurposeTo report the study design and preliminary results of a pilot study, High Myopia-Partial Reduction Orthokeratology study.MethodsChildren with myopia of 6.00D or above and who satisfied the recruitment criteria were randomly assigned to partial reduction orthokeratology (PR ortho-k) and spectacle-wearing control groups. The myopia of the PR ortho-k children were partially reduced using custom made 4-zone ortho-k lenses of target 4.00D. Residual refractive errors were corrected with single vision spectacles. Control subjects were fully corrected with single vision spectacles. PR ortho-k subjects were also required to return for assessment after the first overnight lens wear, and one week and one month after lens wear.ResultsFifty-two eligible subjects were randomly assigned to PR ortho-k group (n = 26) and control group (n = 26). The median age of each group was 10.00 years. The median (range) subjective myopia of the right eye at baseline was 6.41D (5.00–8.00D) and 6.22D (6.00–8.00D) for PR ortho-k and spectacle groups, respectively (p > 0.05). Nineteen (79%) PR ortho-k subjects achieved successful lens fit at the one month visit and the median myopic reduction was 3.75D in the right eye. The incidence of (mild) corneal staining in PR ortho-k subjects reduced from 30% at the first overnight lens wear to 16% at the 1-month visit. Corneal pigmented arc was observed in 32% of PR ortho-k subjects at the 1-month visit.ConclusionsPR ortho-k was successfully applied to high myopic children with no significant changes in ocular health/best corrected visual acuity after one month of lens wear.
Journal: Contact Lens and Anterior Eye - Volume 36, Issue 4, August 2013, Pages 164–170