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Ocular components during the ages of ocular development.
Hassan Hashemi1, Ebrahim Jafarzadehpur, Soraya Ghaderi
1Noor Ophthalmology Research Center, Noor Eye Hospital, Tehran, Iran.
Acta Ophthalmologica
|July 22, 2014
Summary
This study examined ocular biometric components in Iranian children aged 6-18. Axial length and anterior chamber depth increased with age, while lens thickness decreased, with variations noted between sexes.
Area of Science:
- Ophthalmology
- Pediatric Optometry
- Ocular Biometry
Background:
- Understanding ocular development is crucial for identifying refractive errors.
- Biometric parameters change significantly during childhood and adolescence.
- Limited data exists on ocular biometry in the Iranian pediatric population.
Purpose of the Study:
- To determine the distribution of ocular biometric components in Iranian children aged 6 to 18.
- To investigate the correlation of these components with age and sex.
- To provide normative data for ocular development in this demographic.
Main Methods:
- Cross-sectional study conducted in Dezful, Iran.
- Multi-stage stratified cluster sampling of school children.
- Ocular biometric measurements using the LENSTAR/BioGraph device.
Main Results:
- A total of 683 students (55.2% male) aged 6-18 participated.
- Mean axial length (AL), anterior chamber depth (ACD), corneal radius (CR), and corneal diameter (CD) were higher in boys.
- Mean lens thickness (LT) was higher in girls; AL and ACD increased with age, while LT decreased.
- Myopia correlated with increased AL and ACD; hyperopia correlated with increased LT and decreased ACD.
Conclusions:
- This study provides key insights into ocular biometric component distribution during ocular development in Iranian youth.
- Axial length and lens thickness showed the most significant changes within this age group.
- Findings contribute to understanding refractive error development and inform clinical practice.
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