Observation seasonal variation of intraocular pressure in young healthy volunteers
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Yuan-Bo Liang. The Eye Hospital, School of Optometry and Ophthalmology, Wenzhou Medical University, No.270 West College Road, Wenzhou 325027, Zhejiang Province, China. yuanboliang@126.com

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Supported by Natural Science Foundation of Zhejiang Province (LQ17H120007); Zhejiang Province Health Innovation Talents Project (No.2016025); Wenzhou Science and Technology Project (No.Y20160449); Wenzhou Medical University Research Fund (No.QTJ13009); the Eye Hospital of Wenzhou Medical University Research Fund (No. YNKT201302).

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    Abstract:

    AIM: To investigate fluctuation of intraocular pressure (IOP) and seasonal variation of 24-hour IOP during one year in healthy participants METHODS: Totally 13 young healthy volunteers participated in this study. IOP was measured with Canon TX-20 at about 8:00-9:00 a.m. from Monday to Friday every week for a whole year. They also underwent 24-hour IOP examination every three months. Blood pressure, heart rate, temperature, humidity, atmosphere pressure, sunshine duration and other environment parameters were recorded. RESULTS: The yearly fluctuation curve showed IOP in the summer months were lower than other seasons. In the multivariable generalized estimating equation analysis, IOP had a negative correlation with both temperature and sunshine duration (P<0.05). There also was a seasonal effect on 24-hour IOP. However, all intraclass correlation coefficients values of minimum, maximum and average of the 24-hour IOP and each individual IOP were less than 0.30. CONCLUSION: IOP is trend to be higher in cold days than warm days. IOP have negative association with both environmental temperature and duration of sunshine. On a season-to-season basis, 24-hour IOP is not highly reproducible in healthy volunteers.

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Na Liao, Yan-Qian Xie, Guang-Yun Mao, et al. Observation seasonal variation of intraocular pressure in young healthy volunteers. Int J Ophthalmol, 2022,15(1):59-64

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History
  • Received:June 22,2020
  • Revised:December 19,2020
  • Adopted:
  • Online: December 24,2021
  • Published: