Evaluation of Ocular Biometric and Dioptric Components Changes in Iranian School-Age Children: A Cohort Study
Publish Year: 1397
نوع سند: مقاله کنفرانسی
زبان: English
View: 461
نسخه کامل این Paper ارائه نشده است و در دسترس نمی باشد
- Certificate
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
ACSOMED28_124
تاریخ نمایه سازی: 1 دی 1397
Abstract:
Purpose: To determine 4-year changes of biometric and dioptric components in Iranian children aged 7-11 years. Methods: Multi-stage stratified cluster sampling was applied to select the participants in this 4-year cohort. In each subject, the Topcon KR-8000 (Topcon Corporation, Tokyo, Japan) and the LENSTAR/BioGraph biometer (WaveLight AG, Erlangen, Germany) were used to collect the data of cycloplegic refraction and biometry, respectively. Results: Of 468 children, 251 (53.6%) were boys. Comparison of spherical equivalent (SE) between the two study phases showed a marked myopic shift (p<0.001), with the mean changes being significantly higher in boys than girls (0.24 vs. 0.18 D). (p<001) Comparison of biometric changes between two phases showed that axial length (AL) and anterior chamber depth (ACD) increased by 0.49±0.05 mm and 0.12±0.02 mm, while lens thickness (LT) and lens power (LP) decreased by 0.08±0.01 mm and 1.59±0.12 D, respectively. (p<0.05) All biometric components changes were greater in boys than girls. Comparison of the changes of biometric components between different age groups showed a decreased LP, increased AL, and increased ACD in most age groups (p<0.05), while LT and SE did not change significantly in the age groups 9 and 11 years and 8 and 9 years, respectively. Conclusion: Although statistically and clinically considerable changes were seen in AL, ACD, LP, and LT in this 4-year longitudinal study of Iranian children aged 7-11 years, the changes observed in AL, ACD, and LT had a sinus rhythm. The results showed marked changes in all parameters except ACD in both sexes
Authors
Hamed Momeni-Moghaddam
Noor Research Center for Ophthalmic Epidemiology, Noor Eye Hospital, Tehran, Iran.
Frida Jabbari-Azad
Noor Research Center for Ophthalmic Epidemiology, Noor Eye Hospital, Tehran, Iran.
Mojgan Pakbin
Noor Research Center for Ophthalmic Epidemiology, Noor Eye Hospital, Tehran, Iran.
Hassan Hashemi
Noor Research Center for Ophthalmic Epidemiology, Noor Eye Hospital, Tehran, Iran.