Quantitative Pupillometry of the Pupillary Light Reflex in Koreans.
10.3341/jkos.2017.58.6.712
- Author:
Eunoo BAK
1
;
Yung Ju YOO
;
Hee Kyung YANG
;
Jeong Min HWANG
Author Information
1. Department of Ophthalmology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea. nan282@snu.ac.kr
- Publication Type:Original Article
- Keywords:
Pupil;
Pupillary reflex;
Pupillometer
- MeSH:
Adult;
Aging;
Constriction;
Humans;
Pupil;
Reference Values;
Reflex*;
Reflex, Pupillary;
Refractive Errors;
Retrospective Studies
- From:Journal of the Korean Ophthalmological Society
2017;58(6):712-717
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: To determine the normal ranges of various indexes of the pupillary light reflex measured by automated pupillometry in Koreans. METHODS: We retrospectively analyzed 90 healthy adults who did not have any ocular diseases other than refractive errors. The direct pupillary light reflex was measured with an automated dynamic pupillometer (PLR-200, NeurOptics Inc., Irvine, CA, USA). A total of 7 indices were measured as follows; the maximum and minimum pupil diameters, constriction latency, constriction ratio, maximum constriction velocity, average constriction velocity and average dilation velocity. RESULTS: There were no significant differences in quantitative indexes of the pupillary light reflex between fellow eyes. A significant decrease in maximum pupil diameter, minimum pupil diameter, maximum constriction velocity, average constriction velocity and average dilation velocity were observed with aging. In contrast, a significant increase in constriction latency was observed with aging. There were no differences in quantitative pupil measurements according to gender (p<0.001). CONCLUSIONS: Quantitative measurements of the pupillary light reflex by dynamic pupillometry showed no significant differences between fellow eyes. A significant decrease in pupil size, constriction velocity and dilation velocity, and an increase in pupil constriction latency were observed with aging.
