Related Experiment Video
Updated: Jun 29, 2026

Comparison of Agreement and Accuracy using Binocular Wavefront Optometer with Autorefractor and Phoropter
Published on: September 16, 2025
[Comparative study of refractive errors in simple congenital myogenic ptosis and control children]
M A Pérez-Iñigo1, I González, F Mayoral
1Hospital Universitario Miguel Servet, Zaragoza, España. aperezinigo@hotmail.com
Insights
Children with congenital myogenic ptosis have higher refractive errors and astigmatism compared to controls. More severe ptosis correlates with a greater likelihood of astigmatism and need for optical correction.
Area of Science:
- Ophthalmology
- Pediatric Ophthalmology
- Refractive Errors
Background:
- Congenital myogenic ptosis is a common condition affecting eyelid position.
- Refractive errors are prevalent in the pediatric population.
- The relationship between ptosis severity and refractive anomalies requires further investigation.
Purpose of the Study:
- To investigate refractive errors in children with congenital myogenic ptosis.
- To compare refractive data between children with ptosis and a control group.
- To explore the association between ptosis severity and refractive outcomes.
Main Methods:
- A comparative study included 35 children with simple congenital myogenic ptosis and 35 controls.
- Refractive data (spherical equivalent, sphere, cylinder) were analyzed.
- Statistical tests including Student's t-test, ANOVA, and Chi-square were employed.
Main Results:
- Children with ptosis exhibited significantly higher average spherical equivalent, sphere, and cylinder compared to controls (p<0.05).
- A significant association was found between ptosis severity and the presence of astigmatism (chi2=6.88).
- The need for optical correction was significantly higher in children with ptosis (chi2=15.92).
Conclusions:
- Congenital myogenic ptosis is associated with increased refractive errors in children.
- Children with ptosis are more likely to require optical correction.
- Greater ptosis severity correlates with a higher incidence of astigmatism.
Purpose:
To study refractive errors in children with relatively serious congenital myogenic ptosis and to carry out a comparative study in relation to control children in our population.
Methods:
We included 35 children with simple congenital myogenic ptosis, 27 of them had minor ptosis, 3 moderate ptosis and 5 serious ptosis. Thirty-five children were also in the control group. One eye of every subject was included, the worst eye in subjects of the ptosis group and an eye selected at random in control group subjects. A comparative study of refractive data in every group was carried out, using the Student's t-test, ANOVA and Chi square or Yates correction tests.
Results:
We obtained significant differences between children with ptosis and controls in average spherical equivalent (3.08/1.49), in average absolute sphere (2.80/1.42) and in average absolute cylinder (0.81/0.31) (p<0.05). We also observed a relation between the presence of astigmatism and the seriousness of ptosis (chi2=6.88>5.99), and between the need for optical correction and the presence of ptosis (chi2=15.92>3.84).
Conclusions:
Children with simple congenital myogenic ptosis in our enviroment have greater refractive errors than control children. Ptosis children require optical correction more frequently than control. The more serious the ptosis, the more likelihood there is of having astigmatism.