The distribution of anterior chamber depth in a Tehran population: the Tehran eye study.
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| Title: | The distribution of anterior chamber depth in a Tehran population: the Tehran eye study. |
|---|---|
| Authors: | Hashemi, Hassan, KhabazKhoob, Mehdi, Mehravaran, Shiva, Yazdani, Kamran, Mohammad, Kazem, Fotouhi, Akbar |
| Source: | Ophthalmic & Physiological Optics. Jul2009, Vol. 29 Issue 4, p436-442. 7p. 4 Charts, 2 Graphs. |
| Subjects: | Eye examination, Eye care, Regression analysis |
| Geographic Terms: | Tehran (Iran), Iran |
| Abstract: | Purpose: To determine the normal range of anterior chamber depth (ACD) in the population of Tehran by age and gender. Materials and methods: Four hundred and ten people (800 eyes) aged 14 years and over, residing in the first four municipality areas of Tehran were selected through a stratified random cluster sampling method. The measurements were all taken by a single skilled technician using Orbscan II, between 9:00 am and 7:00 pm. The ACD was defined as the distance between the corneal endothelium and the anterior lens surface. Considering the high correlation between the ACD readings of contralateral eyes ( r = 0.82, p < 0.001), only data from right eyes were analysed. Results: In the participants, the mean age was 40.6 ± 16.8 years and 38.8% were male. The mean ACD was 2.79 mm [95% confidence interval (CI): 2.75–2.83]; 2.84 mm (95% CI: 2.79–2.90) in men and 2.75 mm (95% CI: 2.70–2.81) in women. Linear regression analysis revealed a mean ACD reduction of 0.013 mm per year of age ( p < 0.001). The ACD decreased by 0.056 mm per diopter of spherical equivalent and 0.018 mm per mmHg of IOP ( p < 0.001 and p = 0.030, respectively). Conclusions: We found the normal range of ACD in the population of Tehran which is slightly different from that reported from other geographical regions. The study also demonstrated the correlation of ACD with other factors; it decreases with age, and is slightly higher in men. [ABSTRACT FROM AUTHOR] |
| Copyright of Ophthalmic & Physiological Optics is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Psychology and Behavioral Sciences Collection |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: pbh DbLabel: Psychology and Behavioral Sciences Collection An: 40743988 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: The distribution of anterior chamber depth in a Tehran population: the Tehran eye study. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Hashemi%2C+Hassan%22">Hashemi, Hassan</searchLink><br /><searchLink fieldCode="AR" term="%22KhabazKhoob%2C+Mehdi%22">KhabazKhoob, Mehdi</searchLink><br /><searchLink fieldCode="AR" term="%22Mehravaran%2C+Shiva%22">Mehravaran, Shiva</searchLink><br /><searchLink fieldCode="AR" term="%22Yazdani%2C+Kamran%22">Yazdani, Kamran</searchLink><br /><searchLink fieldCode="AR" term="%22Mohammad%2C+Kazem%22">Mohammad, Kazem</searchLink><br /><searchLink fieldCode="AR" term="%22Fotouhi%2C+Akbar%22">Fotouhi, Akbar</searchLink> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Ophthalmic+%26+Physiological+Optics%22">Ophthalmic & Physiological Optics</searchLink>. Jul2009, Vol. 29 Issue 4, p436-442. 7p. 4 Charts, 2 Graphs. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Eye+examination%22">Eye examination</searchLink><br /><searchLink fieldCode="DE" term="%22Eye+care%22">Eye care</searchLink><br /><searchLink fieldCode="DE" term="%22Regression+analysis%22">Regression analysis</searchLink> – Name: SubjectGeographic Label: Geographic Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Tehran+%28Iran%29%22">Tehran (Iran)</searchLink><br /><searchLink fieldCode="DE" term="%22Iran%22">Iran</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Purpose:  To determine the normal range of anterior chamber depth (ACD) in the population of Tehran by age and gender. Materials and methods:  Four hundred and ten people (800 eyes) aged 14 years and over, residing in the first four municipality areas of Tehran were selected through a stratified random cluster sampling method. The measurements were all taken by a single skilled technician using Orbscan II, between 9:00 am and 7:00 pm. The ACD was defined as the distance between the corneal endothelium and the anterior lens surface. Considering the high correlation between the ACD readings of contralateral eyes ( r = 0.82, p < 0.001), only data from right eyes were analysed. Results:  In the participants, the mean age was 40.6 ± 16.8 years and 38.8% were male. The mean ACD was 2.79 mm [95% confidence interval (CI): 2.75–2.83]; 2.84 mm (95% CI: 2.79–2.90) in men and 2.75 mm (95% CI: 2.70–2.81) in women. Linear regression analysis revealed a mean ACD reduction of 0.013 mm per year of age ( p < 0.001). The ACD decreased by 0.056 mm per diopter of spherical equivalent and 0.018 mm per mmHg of IOP ( p < 0.001 and p = 0.030, respectively). Conclusions:  We found the normal range of ACD in the population of Tehran which is slightly different from that reported from other geographical regions. The study also demonstrated the correlation of ACD with other factors; it decreases with age, and is slightly higher in men. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Ophthalmic & Physiological Optics is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1111/j.1475-1313.2009.00647.x Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 7 StartPage: 436 Subjects: – SubjectFull: Eye examination Type: general – SubjectFull: Eye care Type: general – SubjectFull: Regression analysis Type: general – SubjectFull: Tehran (Iran) Type: general – SubjectFull: Iran Type: general Titles: – TitleFull: The distribution of anterior chamber depth in a Tehran population: the Tehran eye study. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Hashemi, Hassan – PersonEntity: Name: NameFull: KhabazKhoob, Mehdi – PersonEntity: Name: NameFull: Mehravaran, Shiva – PersonEntity: Name: NameFull: Yazdani, Kamran – PersonEntity: Name: NameFull: Mohammad, Kazem – PersonEntity: Name: NameFull: Fotouhi, Akbar IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 07 Text: Jul2009 Type: published Y: 2009 Identifiers: – Type: issn-print Value: 02755408 Numbering: – Type: volume Value: 29 – Type: issue Value: 4 Titles: – TitleFull: Ophthalmic & Physiological Optics Type: main |
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