Designing contact lenses for oriental eyes

Siu Yin Lam, Donald F.C. Loran

Research output: Journal article publicationJournal articleAcademic researchpeer-review

38 Citations (Scopus)

Abstract

This study attempts to determine whether a contact lens designed to the parameters of a Caucasian model is equally valid for an Oriental cornea. Sixty-five subjects of similar age and refractive error in each of two groups (Chinese versus English Caucasian) were recruited. Corneal topography, diameter, sensitivity and fragility were measured for all the subjects. Results from this study show that the Chinese eye has a smaller and steeper cornea, with a lower rate of peripheral flattening than in the British eye. Corneal sensitivity is significantly lower than that for the blue-eyed British group. No differences were found between other iris colours or in corneal fragility. These data were used to build a corneal model suitable for contact lens fitting and design in the Chinese population.
Original languageEnglish
Pages (from-to)109-114
Number of pages6
JournalJournal of the British Contact Lens Association
Volume14
Issue number3
DOIs
Publication statusPublished - 1 Jan 1991

Keywords

  • Contact lens design
  • corneal topography
  • racial differences

ASJC Scopus subject areas

  • Optometry

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