Fitting evaluation of Ocular Science-American Hydron BioMedics disposable hydrogel contact lens

Kenneth Daniels, Dave Gubman, Sue Tamkins

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


This investigation concerned the evaluation of the Ocular Science-American Hydron BioMedics® hydrophilic disposable contact lens (polymacon 38% water), which used a controlled comparative lens-the Vistakon AcuVue® hydrophilic disposable contact lens (etafilcon A 55% water)-in a 2-week, daily-wear study. Direct measures of lens centration and lens movement in primary gaze, upgaze, and lateral gaze were evaluated. Additionally, calculations were completed for the overall lens centration and assessments of corneal coverage and success rates of fitting were determined. The BioMedics lens demonstrated optimal fitting qualities in the areas of corneal coverage, lens centration, and lens movement that were consistent with a moderate range of tightness on the push-up test. This study suggests that the BioMedic lens demonstrates optimal movement and centration characteristics, which will lead to a high successful fitting rate.

Original languageEnglish (US)
Pages (from-to)89-94
Number of pages6
JournalInternational Contact Lens Clinic
Issue number3-4
StatePublished - 1995


  • AcuVue
  • BioMedics
  • OptiFree
  • comfort
  • corneal coverage
  • etafilcon
  • lens (primary gaze, upgaze, lateral gaze) movement
  • lens centration
  • polymacon
  • push-up test
  • tightness
  • visual acuity

ASJC Scopus subject areas

  • Ophthalmology


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