Abstract:
PURPOSE:The pupil diameter under low ambient illumination is diagnostically valuable for refractive surgery. The aim of study was to compare the NeurOptics® Pupillometer, Sirius®, and Ocular Wavefront Analyser® in determining scotopic pupil diameter. MATERIALS AND METHODS:A total of 96 eyes of 48 subjects were included. The scotopic pupil size was measured with 3 instruments and the measurements repeated following instillations of 1% cyclopentolate. Agreement between the instruments was assessed. RESULTS:The mean measurement obtained by Sirius was significantly larger than Ocular Wavefront Analyser and NeurOptics. The Ocular Wavefront Analyser measured significantly smaller than the others. The mean cycloplegic pupillary diameters (7.73±0.70 mm with NeurOptics, 7.42±0.45 mm with Ocular Wavefront Analyser, and 8.06±0.76 mm with Sirius) were significantly different obtained by 3 instruments (p<0.001, for each; one-way analysis of variance and paired t tests). CONCLUSIONS:The differences between measured pupil diameters with or without cycloplegia obtained by the NeurOptics, Sirius, and Ocular Wavefront Analyser were significant and have unacceptable levels of disagreement. These results may not be related to illumination and accommodation only, but also to measurement algorithms and technical differences of the devices.
journal_name
Eur J Ophthalmoljournal_title
European journal of ophthalmologyauthors
Altan C,Kaya V,Basarir B,Celik U,Azman E,Akar S,Demirok A,Yilmaz OFdoi
10.5301/ejo.5000150subject
Has Abstractpub_date
2012-11-01 00:00:00pages
904-10issue
6eissn
1120-6721issn
1724-6016pii
3167170A-D4B3-4769-A522-C03C10640EFBjournal_volume
22pub_type
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