Contact Lens & Anterior Eye
Volume 28, Issue 2 , Pages 53-56, June 2005

Scotopic measurement of normal pupil size with the Colvard pupillometer and the Nidek auto-refractor☆

  • Sanjay Mantry

      Affiliations

    • Birmingham and Midland Eye Centre, Birmingham, UK
    • ,
  • Somnath Banerjee

      Affiliations

    • Birmingham and Midland Eye Centre, Birmingham, UK
    • ,
  • Shehzad Naroo

      Affiliations

    • Neurosciences Research Institute, Aston University, Birmingham, UK
    • ,
  • Sunil Shah

      Affiliations

    • Birmingham and Midland Eye Centre, Birmingham, UK
    • Neurosciences Research Institute, Aston University, Birmingham, UK
    • Corresponding Author InformationCorresponding author. Tel.: +44 121 4242000; fax: +44 121 4245462.

published online 02 March 2005.

Abstract 

Purpose:

To compare prospectively, pupil size with the Nidek AR700A auto-refractor and the Colvard pupillometer.

Methods:

Pupil diameter was measured in 46 eyes at 2min intervals in a low mesopic and under photopic light conditions.

Results:

The mean pupil diameter was 4.8±1.0mm with the Colvard pupillometer and 4.8±0.9mm with the Nidek auto-refractor in low mesopic light conditions. The mean photopic pupil diameter was 3.3±0.8mm with the Colvard pupillometer and 3.9±0.8mm with the Nidek auto-refractor.

Conclusion:

The pupil sizes are very similar with both instruments.

Keywords: Pupil size, Colvard pupillometer, Nidek AR700A auto-refractor

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☆ Presented in part at NIDEK International Excimer Laser User Meeting, Monte Carlo, December 2001; British Society for Refractive Surgery, Birmingham, March 2002; International Congress for Ophthalmology, Sydney, April 2002.

PII: S1367-0484(04)00090-6

doi:10.1016/j.clae.2004.12.002

Contact Lens & Anterior Eye
Volume 28, Issue 2 , Pages 53-56, June 2005

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