Ocular biometric measurements in cataract surgery candidates in Portugal

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Abstract

Objective: Describe the ocular biometric parameters and their associations in a population of cataract surgery candidates. Methods: A cross-sectional study of 13,012 eyes of 6,506 patients was performed. Biometric parameters of the eyes were measured by optical low-coherence reflectometry. The axial length (AL), mean keratometry (K) and astigmatism, anterior chamber depth (ACD) (epithelium to lens), lens thickness (LT), and Corneal Diameter (CD) were evaluated. Results: The mean age was 69 ± 10 years (44–99 years). Mean AL, Km, and ACD were 23.87 ± 1.55 mm (19.8–31.92 mm), 43.91 ± 1.71 D (40.61–51.14 D), and 3.25 ± 0.44 mm (2.04–5.28 mm), respectively. The mean LT was 4.32 ± 0.49 mm (2.73–5.77 mm) and the mean CD was 12.02 ± 0.46 mm (10.50–14.15 mm). The mean corneal astigmatism was 1.08 ± 0.84 D (0.00–7.58 D) and 43.5% of eyes had astigmatism ≥ 1.00 D. Male patients had longer AL and ACDs (p <.001) and flatter corneas (p <.001). In regression models considering age, gender, Km, ACD, LT, and CD, a longer AL was associated with being male and having higher ACD, LT and CD. Conclusions: These data represent normative biometric values for the Portuguese population. The greatest predictor of ocular biometrics was gender. There was no significant correlation between age and AL, ACD, or Km. These results may be relevant in the evaluation of refractive error and in the calculation of intraocular lens power. © 2017 Ferreira et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Original languageEnglish
JournalPLoS ONE
Volume12
Issue number10
DOIs
Publication statusPublished - 5 Oct 2017

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Portugal
cataract
Biometrics
biometry
Lens
Cataract
Surgery
Lenses
Anterior Chamber
surgery
eyes
Astigmatism
Intraocular lenses
Corneal Endothelium
reflectometry
Refractive Errors
Intraocular Lenses
Licensure
gender
Cornea

Cite this

@article{99b4ba85ab2e42a7b702635271ea9eee,
title = "Ocular biometric measurements in cataract surgery candidates in Portugal",
abstract = "Objective: Describe the ocular biometric parameters and their associations in a population of cataract surgery candidates. Methods: A cross-sectional study of 13,012 eyes of 6,506 patients was performed. Biometric parameters of the eyes were measured by optical low-coherence reflectometry. The axial length (AL), mean keratometry (K) and astigmatism, anterior chamber depth (ACD) (epithelium to lens), lens thickness (LT), and Corneal Diameter (CD) were evaluated. Results: The mean age was 69 ± 10 years (44–99 years). Mean AL, Km, and ACD were 23.87 ± 1.55 mm (19.8–31.92 mm), 43.91 ± 1.71 D (40.61–51.14 D), and 3.25 ± 0.44 mm (2.04–5.28 mm), respectively. The mean LT was 4.32 ± 0.49 mm (2.73–5.77 mm) and the mean CD was 12.02 ± 0.46 mm (10.50–14.15 mm). The mean corneal astigmatism was 1.08 ± 0.84 D (0.00–7.58 D) and 43.5{\%} of eyes had astigmatism ≥ 1.00 D. Male patients had longer AL and ACDs (p <.001) and flatter corneas (p <.001). In regression models considering age, gender, Km, ACD, LT, and CD, a longer AL was associated with being male and having higher ACD, LT and CD. Conclusions: These data represent normative biometric values for the Portuguese population. The greatest predictor of ocular biometrics was gender. There was no significant correlation between age and AL, ACD, or Km. These results may be relevant in the evaluation of refractive error and in the calculation of intraocular lens power. {\circledC} 2017 Ferreira et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.",
author = "T.B. Ferreira and K.J. Hoffer and Ribeiro, {Filomena J.} and Ribeiro, {Paulo Ant{\'o}nio Martins Ferreira} and J.G. O’Neill",
note = "info:eu-repo/grantAgreement/FCT/5876/147412/PT# This work was supported by Portuguese research Grant numbers PEst-OE/FIS/UI0068/2011 and UID/FIS/00068/2013 through the FCT-MEC, the {"}Plurianual{"} financial contribution of {"}Fundacao para a Ciencia e Tecnologia{"}, Portugal and Sociedade Portuguesa de Oftalmologia PhD Grant. Fundacao para a Ciencia e a Tecnologia-PEst-OE/FIS/UI0068/2011 and UID/FIS/00068/2013 - Prof Paulo Ribeiro. Sociedade Portuguesa de Oftalmologia-N/A-Dr Tiago Ferreira. Portuguese research Grant numbers PEst-OE/FIS/UI0068/2011 and UID/FIS/00068/2013 through the FCT-MEC, the {"}Plurianual{"} financial contribution of {"}Fundacao para a Ciencia e Tecnologia{"}, Portugal and Sociedade Portuguesa de Oftalmologia PhD Grant. Editor",
year = "2017",
month = "10",
day = "5",
doi = "10.1371/journal.pone.0184837",
language = "English",
volume = "12",
journal = "PlosOne",
issn = "1932-6203",
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Ocular biometric measurements in cataract surgery candidates in Portugal. / Ferreira, T.B.; Hoffer, K.J.; Ribeiro, Filomena J.; Ribeiro, Paulo António Martins Ferreira; O’Neill, J.G.

In: PLoS ONE, Vol. 12, No. 10, 05.10.2017.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Ocular biometric measurements in cataract surgery candidates in Portugal

AU - Ferreira, T.B.

AU - Hoffer, K.J.

AU - Ribeiro, Filomena J.

AU - Ribeiro, Paulo António Martins Ferreira

AU - O’Neill, J.G.

N1 - info:eu-repo/grantAgreement/FCT/5876/147412/PT# This work was supported by Portuguese research Grant numbers PEst-OE/FIS/UI0068/2011 and UID/FIS/00068/2013 through the FCT-MEC, the "Plurianual" financial contribution of "Fundacao para a Ciencia e Tecnologia", Portugal and Sociedade Portuguesa de Oftalmologia PhD Grant. Fundacao para a Ciencia e a Tecnologia-PEst-OE/FIS/UI0068/2011 and UID/FIS/00068/2013 - Prof Paulo Ribeiro. Sociedade Portuguesa de Oftalmologia-N/A-Dr Tiago Ferreira. Portuguese research Grant numbers PEst-OE/FIS/UI0068/2011 and UID/FIS/00068/2013 through the FCT-MEC, the "Plurianual" financial contribution of "Fundacao para a Ciencia e Tecnologia", Portugal and Sociedade Portuguesa de Oftalmologia PhD Grant. Editor

PY - 2017/10/5

Y1 - 2017/10/5

N2 - Objective: Describe the ocular biometric parameters and their associations in a population of cataract surgery candidates. Methods: A cross-sectional study of 13,012 eyes of 6,506 patients was performed. Biometric parameters of the eyes were measured by optical low-coherence reflectometry. The axial length (AL), mean keratometry (K) and astigmatism, anterior chamber depth (ACD) (epithelium to lens), lens thickness (LT), and Corneal Diameter (CD) were evaluated. Results: The mean age was 69 ± 10 years (44–99 years). Mean AL, Km, and ACD were 23.87 ± 1.55 mm (19.8–31.92 mm), 43.91 ± 1.71 D (40.61–51.14 D), and 3.25 ± 0.44 mm (2.04–5.28 mm), respectively. The mean LT was 4.32 ± 0.49 mm (2.73–5.77 mm) and the mean CD was 12.02 ± 0.46 mm (10.50–14.15 mm). The mean corneal astigmatism was 1.08 ± 0.84 D (0.00–7.58 D) and 43.5% of eyes had astigmatism ≥ 1.00 D. Male patients had longer AL and ACDs (p <.001) and flatter corneas (p <.001). In regression models considering age, gender, Km, ACD, LT, and CD, a longer AL was associated with being male and having higher ACD, LT and CD. Conclusions: These data represent normative biometric values for the Portuguese population. The greatest predictor of ocular biometrics was gender. There was no significant correlation between age and AL, ACD, or Km. These results may be relevant in the evaluation of refractive error and in the calculation of intraocular lens power. © 2017 Ferreira et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

AB - Objective: Describe the ocular biometric parameters and their associations in a population of cataract surgery candidates. Methods: A cross-sectional study of 13,012 eyes of 6,506 patients was performed. Biometric parameters of the eyes were measured by optical low-coherence reflectometry. The axial length (AL), mean keratometry (K) and astigmatism, anterior chamber depth (ACD) (epithelium to lens), lens thickness (LT), and Corneal Diameter (CD) were evaluated. Results: The mean age was 69 ± 10 years (44–99 years). Mean AL, Km, and ACD were 23.87 ± 1.55 mm (19.8–31.92 mm), 43.91 ± 1.71 D (40.61–51.14 D), and 3.25 ± 0.44 mm (2.04–5.28 mm), respectively. The mean LT was 4.32 ± 0.49 mm (2.73–5.77 mm) and the mean CD was 12.02 ± 0.46 mm (10.50–14.15 mm). The mean corneal astigmatism was 1.08 ± 0.84 D (0.00–7.58 D) and 43.5% of eyes had astigmatism ≥ 1.00 D. Male patients had longer AL and ACDs (p <.001) and flatter corneas (p <.001). In regression models considering age, gender, Km, ACD, LT, and CD, a longer AL was associated with being male and having higher ACD, LT and CD. Conclusions: These data represent normative biometric values for the Portuguese population. The greatest predictor of ocular biometrics was gender. There was no significant correlation between age and AL, ACD, or Km. These results may be relevant in the evaluation of refractive error and in the calculation of intraocular lens power. © 2017 Ferreira et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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DO - 10.1371/journal.pone.0184837

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VL - 12

JO - PlosOne

JF - PlosOne

SN - 1932-6203

IS - 10

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