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

Sanjay Mantry, Somnath Banerjee, Shehzad Naroo, Sunil Shah*

*Corresponding author for this work

Research output: Contribution to journalArticle

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 2 min intervals in a low mesopic and under photopic light conditions. Results: The mean pupil diameter was 4.8 ± 1.0 mm with the Colvard pupillometer and 4.8 ± 0.9 mm with the Nidek auto-refractor in low mesopic light conditions. The mean photopic pupil diameter was 3.3 ± 0.8 mm with the Colvard pupillometer and 3.9 ± 0.8 mm with the Nidek auto-refractor. Conclusion: The pupil sizes are very similar with both instruments.

Original languageEnglish
Pages (from-to)53-56
Number of pages4
JournalContact Lens and Anterior Eye
Volume28
Issue number2
DOIs
Publication statusPublished - 1 Jun 2005

Keywords

  • Colvard pupillometer
  • Nidek AR700A auto-refractor
  • Pupil size

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