Menicon Undertakes with the Novovision Clinic a Paediatric Myopia Control Clinical Trial

    NAGOYA, June 23 /CNW/ - Although previous studies suggest that
orthokeratology contact lens wear slows the axial length growth of the eye in
children with progressing myopia, some limitations in the methodology employed
have been evident. Using a rigorous study design and precise optical measuring
instruments, Menicon Co., Ltd. and the Novovision Clinic in Madrid are
undertaking the Myopia Control with Orthokeratology contact lenses in Spain
(MCOS) study to compare the axial length growth between white European myopic
children wearing orthokeratology contact lenses (OK) and distance
single-vision spectacles (SP) over a 2-year period. In this prospective,
single-centre clinical trial, sixty-two subjects 6 to 12 years of age, and
with myopia of -0.75 to -4.00 D and astigmatism less than or equal to 1.00 D
were randomly allocated wear OK or SP correction. Measurements of axial length
(using partial coherence interferometry, Zeiss IOLMaster), anterior chamber
depth, corneal topography, cycloplegic refraction and visual acuity are being
performed at 6-month intervals. To date, no subjects have withdrawn from the
study, no adverse events were evident and no contact lens fitting
modifications were required in the OK group. The MCOS study offers a number of
notable features: a prospective design; well matched samples and high
resolution ocular biometry measures, which collectively should elucidate
whether OK contact lens wear is a feasible method of myopia control.
    "The MCOS study aims, using a rigorous study design and precise optical
measuring instruments, at elucidating whether orthokeratology lens wear slows
the axial length growth of the eye in children with progressing myopia. This
study is of special relevance taking into account that the prevalence of
myopia has increased substantially over recent decades and now is approaching
10-25% and 60-80% in industrialized societies of the West and East,
respectively", commented Dr. Jacinto Santodomingo, Global Professional
Relations Manager for Menicon Co., Ltd.
    "We have been fitting orthokeratology lenses in our clinic for several
years, during which we observed that myopia tended to progress less in
children wearing orthokeratology lenses compared to children wearing other
modalities of visual correction. We are delighted to participate in this
unique clinical trial, which should prove whether we are correct about our
preliminary observations", added Mr. Cesar Villa, Director of Optometry at

    About Menicon:
    Menicon Co., Ltd. (, founded by Mr. Kyoichi Tanaka in
1951, is Japan's first and largest contact lens manufacturer, and now is
represented in over 30 countries. Menicon is a manufacturer dedicated to all
areas of soft and GP contact lens related businesses including material
development, lens designing, and manufacturing of contact lenses and care
solutions. Menicon is a world-leader in the development of hyper-Dk GP
(Menicon Z) and soft contact lenses (Menicon PremiO).

For further information:

For further information: Toshio Matsushima, Global Business Operations,
Menicon Co., Ltd., Phone: +81-52-937-5021, Fax: +81-52-935-1121, E-mail:, URL:

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