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Updated: Jul 19, 2025

Inducement and Evaluation of a Murine Model of Experimental Myopia
Published on: January 22, 2019
Effects of atropine 0.01% on refractive errors in children with myopia
Xingxue Zhu1,2,3, Yuliang Wang1,2,3, Yujia Liu1,2,3
1Department of Ophthalmology and Vision Science, Eye & ENT Hospital, Fudan University, Shanghai, China.
Insights
Low-dose atropine eye drops effectively slow myopia progression in children. However, treatment led to a small but significant increase in total astigmatism, primarily due to changes in corneal astigmatism.
Area of Science:
- Ophthalmology
- Pediatric Ophthalmology
- Myopia Control
Background:
- Astigmatism changes during atropine treatment are not well understood.
- Myopia is a growing concern in pediatric populations.
- Atropine eye drops are used for myopia management.
Purpose of the Study:
- To investigate the effects of 0.01% atropine eye drops on spherical and cylindrical refractive errors in myopic children.
- To evaluate changes in total astigmatism (TA), corneal astigmatism (CA), and residual astigmatism (RA) during atropine treatment.
Main Methods:
- A randomized controlled trial involving myopic children aged 6-14 years.
- Participants received either 0.01% atropine eye drops nightly or single-vision lenses alone.
- Cycloplegic refraction and axial length were measured over a 9-month follow-up period.
Main Results:
- Atropine treatment significantly reduced myopia progression compared to controls (spherical equivalent: -0.35 vs. -0.56 D; axial length: 0.20 vs. 0.33 mm).
- A statistically significant increase in total astigmatism (TA) was observed in the atropine group (-0.14 D) compared to the control group (-0.04 D).
- The increase in TA was primarily driven by changes in corneal astigmatism (CA).
Conclusions:
- 0.01% atropine eye drops are effective in preventing myopia progression in children.
- Nine months of atropine treatment resulted in a small but statistically significant increase in total astigmatism.
- The findings suggest careful monitoring of astigmatism is warranted during low-dose atropine therapy for myopia control.
Background:
Little is known about changes in astigmatism during atropine treatment. We aimed to explore the effects of atropine 0.01% eye drops on both spherical and cylindrical refractive errors in myopic children.
Methods:
Children aged 6-14 years with myopia ≥ -6.00 D and < -0.50 D, and total astigmatism > -2.00 D in at least one eye were enrolled. Subjects were randomised either to receive atropine 0.01% once nightly with single-vision lenses or simply to wear single-vision lenses and were followed up at 3-month intervals. Cycloplegic refraction and axial length were measured. The magnitude and direction of total astigmatism (TA), corneal astigmatism (CA), and residual astigmatism (RA) were evaluated.
Results:
Overall, 119 eyes (69 eyes in the atropine group and 50 eyes in the control group) were included in the final analyses after 9 months. Atropine-treated eyes showed significantly less progression of myopia than did control eyes (spherical equivalent: -0.35 ± 0.33 vs. -0.56 ± 0.49 D, p = 0.001; axial length: 0.20 ± 0.19 vs. 0.33 ± 0.19 mm, p < 0.001). Compared with control eyes (-0.04 ± 0.23 D), a significant increase in TA was observed in the atropine-treated eyes (-0.14 ± 0.29 D); this was mainly attributed to the increase in CA (-0.17 ± 0.26 D) rather than the minor decrease in RA (0.02 ± 0.32 D).
Conclusions:
Atropine 0.01% was effective in preventing myopia progression, whereas 9 months of atropine treatment resulted in a clinically small, but statistically significant increase in TA in myopic Chinese children.
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