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Distribution of corneal thickness and its determinants in 6-12-year-old children in an Iranian general population
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نویسنده
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hashemi hassan ,saatchi mohammad ,khabazkhoob mehdi ,emamian mohammad hassan ,yekta abbasali ,fotouhi akbar
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منبع
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journal of current ophthalmology - 2019 - دوره : 31 - شماره : 2 - صفحه:150 -156
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چکیده
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Purpose: to determine the central corneal thickness (cct), apex, and paracentral thicknesses and their determinants in children aged 6e12 years. methods: the present study was part of the phase 1 of shahroud school children eye cohort study in 2015. cluster sampling was done in urban areas while all children were invited to participate in the study in rural areas. the pentacam hr was used for measurements. cct was measured within the central 3 mm zone of the cornea, and corneal thickness 3 mm further from the center was considered paracentral thickness. results: of 6624 students who were selected, 5620 (84.8%) participated in the study. among 4956 students, studied in this report, 52.2% were boys, and the mean age of the study participants was 9.75 ± 1.71 years (6e12). the mean cct and apical thickness was 556.29 ± 34.04 and 557.43 ± 34.03 mm, respectively. the mean paracentral thickness was 657.62 ± 39.11 mm in the superior, 632.65 ± 37.63 mm in the inferior, 648.64 ± 38.75 mm in the nasal, and 617.36 ± 37.19 mm in the temporal region. a multiple regression model showed that cct decreased by 4.70 mm with every 1 diopter increase in the mean keratometry and increased by 20.06 mmwith every 1mmincrease in the anterior chamber depth (acd) (both p-value < 0.001). age, sex, ethnicity and residence place were also found to be associated with cct. conclusions: this study is the first to describe the distribution of corneal thickness in iranian children with a large sample size. this study showed that corneal thickness was significantly correlated with younger age, female gender, urban residence, and a number of biometric variables.
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کلیدواژه
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Central corneal thickness ,Children ,Cornea ,General population ,Iran
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آدرس
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noor eye hospital, noor research center for ophthalmic epidemiology, Iran, noor eye hospital, noor research center for ophthalmic epidemiology, Iran, shahid beheshti university of medical sciences, school of nursing and midwifery, department of medical surgical nursing, iran. noor eye hospital, noor ophthalmology research center, Iran, shahroud university of medical sciences, ophthalmic epidemiology research center, iran, mashhad university of medical sciences, school of paramedical sciences, department of optometry, Iran, tehran university of medical sciences, school of public health, department of epidemiology and biostatistics, Iran
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Authors
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