Journal of The British Contact Lens Association
Volume 19, Issue 4 , Pages 113-115, 1996

Comparison of changes in corneal thickness under low Dk and high Dk rigid contact lenses

  • Willem Vreugdenhil

      Affiliations

    • Optometrist, Oculenti Contact Lens Practice, Rotterdam, The Netherlands
    • Corresponding Author InformationAddress for Correspondence Willem Vreugdenhil, Oculenti Contact Lens Practice, The Rotterdam Eye Hospital, William Boothlaan 16, 3012 VJ Rotterdam, the Netherlands.
    • ,
  • Annette J.M. Geeyards

      Affiliations

    • Ophthalmologist, The Rotterdam Eye Hospital, Cornea and Contact Lens Department, The Netherlands
    • ,
  • Houdijn W. Beekhuis

      Affiliations

    • Ophthalmologist, The Rotterdam Eye Hospital, Cornea and Contact Lens Department, The Netherlands

Received 23 February 1996; received in revised form 1 April 1996

Abstract 

In a randomised study, the relation between corneal thickness changes and Dk value of rigid gas permeable contact lenses was investigated in 10 volunteers. Each volunteer was fitted with lenses of different Dk values in each eye. A low Dk lens (Dk15) was fitted on one eye of each subject and a high Dk lens (Dk125) on the contralateral eye. After 2 months the reverse was done. After another 2 months, the lenses were again exchanged for the first pair. After each change corneal thickness was measured. A non-significant trend in corneal thickness was found in 13 of the 20 eyes. We conclude that for daily wear use the lower Dk materials meet corneal requirement.

RGP contact lenses, high, low Dk materials, corneal thickness, pachymetry

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PII: S0141-7037(96)80003-6

Journal of The British Contact Lens Association
Volume 19, Issue 4 , Pages 113-115, 1996

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