| Quantitative Pupillometry of the Pupillary Light Reflex in Koreans. |
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Eunoo Bak, Yung Ju Yoo, Hee Kyung Yang, Jeong Min Hwang |
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Department of Ophthalmology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea. nan282@snu.ac.kr |
| 한국인에서 자동동공측정계를 이용한 정량적 동공반사 계측 |
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박은우⋅류영주⋅양희경⋅황정민 |
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서울대학교 의과대학 분당서울대학교병원 안과학교실 |
Correspondence:
Hee Kyung Yang,
Email: nan282@snu.ac.kr
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Received: 16 February 2017 • Revised: 10 April 2017 • Accepted: 26 May 2017 |
| 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. |
| Key Words:
Pupil;Pupillary reflex;Pupillometer |
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