Clinical Studies on the Changes of Intraocular Pressure and Keratometry before and after Pupil Dilation in Children and Teenagers

Siqi WU; Gang CHEN; Yishuang XIAO

doi:10.12259/j.issn.2095-610X.S20220129

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Siqi WU, Gang CHEN, Yishuang XIAO. Clinical Studies on the Changes of Intraocular Pressure and Keratometry before and after Pupil Dilation in Children and Teenagers[J]. Journal of Kunming Medical University. doi: 10.12259/j.issn.2095-610X.S20220129

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Siqi WU, Gang CHEN, Yishuang XIAO. Clinical Studies on the Changes of Intraocular Pressure and Keratometry before and after Pupil Dilation in Children and Teenagers[J]. Journal of Kunming Medical University. doi: 10.12259/j.issn.2095-610X.S20220129

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Clinical Studies on the Changes of Intraocular Pressure and Keratometry before and after Pupil Dilation in Children and Teenagers

doi: 10.12259/j.issn.2095-610X.S20220129

1.
Dept. of Ophthalmology，Kunming Children’s Hospital，Kunming Yunnan 650034
2.
Dept. of Ophthalmology，Dali Maternal and Child Health Hospital，Dali Yunnan 671000，China

Received Date: 2021-12-07

Abstract

Abstract

Objective To investigate the changes of intraocular pressure and keratometry before and after pupil dilation in children and teenagers. Methods This prospective clinical study included 487 （974 normal eyes） children and teenagers, mean age of （9.92±2.47） years range 4-17 years and refractive diopter range +3.50 - -10D） from the Department of Ophthalmology, Kunming Children’s Hospital from December 2015 to January 2019. The intraocular pressure （IOP） was measured by non-contact tonometer and keratometry was measured by computer optometry instrument and corneal topography. Data were analyzed using pearson correlation analysis and t test. Results （1） The IOP before and after the pupil dilation were 17.02±2.27 mmHg、16.86±2.86 mmHg in the right eye, and 17.19±2.30 mmHg and 16.90±2.81 mmHg in the left eye. There was no significant difference in IOP before and after the pupil dilation in both eyes （P > 0.05）; （2） There was no statistically significant difference between either right and left eyes or males and females （ P > 0.05） in ΔIOP. （3） There was no significant correlation between ΔIOP and SE and age. （4） There was no significant difference in K _f and K_S of keratometry measured by the same instrument before and after the dilation （P > 0.05） . （5） There was no significant difference in keratometry measured by different instruments between computer optometer and corneal topography before the dilation of the right eyes in K _f （P > 0.05） ; corneal topography was higher than computer optometry, the difference was statistically significant （ P < 0.05） in K _S. The K_f corneal topography of the left eye was slightly higher than that of computer optometry, and the difference was statistically significant （P < 0.05）; there was no significant difference between Ks corneal topography and computer optometry （ P > 0.05） . （6） There was statistically significant difference （ P < 0.05） in keratometry after the pupil dilation between corneal topographic map computer optometer. Conclusion There is no significant change in IOP and keratometry after the pupil dilation in children and teenagers.
- Children and teenagers,
- Pupil dilation,
- Intraocular pressure,
- Keratometry

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References(17)

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