ORIGINAL ARTICLE
Year : 2022 | Volume
: 34 | Issue : 3 | Page : 284--289
Corneal Biomechanical Parameters after 60-Year-Old
Fereshteh Shokrollahzadeh1, Hassan Hashemi2, Abbasali Yekta1, Hadi Ostadimoghaddam3, Mehdi Khabazkhoob4
1 Department of Optometry, School of Paramedical Sciences, Mashhad University of Medical Sciences, Mashhad, Iran
2 Noor Research Center for Ophthalmic Epidemiology, Noor Eye Hospital, Tehran, Iran
3 Refractive Errors Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
4 Department of Basic Sciences, School of Nursing and Midwifery, Shahid Beheshti University of Medical Sciences, Tehran, Iran
Correspondence Address:
Abbasali Yekta
Department of Optometry, School of Paramedical Sciences, Mashhad University of Medical Sciences, Mashhad
Iran
Purpose: To determine the distribution of corneal biomechanical parameters in an elderly population.
Methods: This cross-sectional study was conducted in subjects above 60 years living in Tehran. The participants were selected using multi-stage cluster sampling. Corneal biomechanical parameters were measured in a randomly selected subsample of this population using the Reichert Ocular Response Analyzer (Reichert Ophthalmic Instruments, Inc., Buffalo, NY, USA).
Results: Of 470 subjects, the data of 420 participants aged over 60 years were analyzed (mean age: 69.3 ± 6.5 years and range: 61–88 years), 363 (86.4%) of whom were male. The mean and standard deviation of corneal hysteresis (CH) and corneal resistance factor (CRF) were 8.37 ± 1.55 mmHg (95% confidence interval [CI]: 8.02–8.72) and 9.06 ± 1.70 mmHg (95% CI: 8.69–9.44), respectively. The mean CH was 8.27 ± 1.54 mmHg in men and 9.25 ± 1.28 mmHg in women, and the mean CRF was 9.00 ± 1.71 mmHg in men and 9.63 ± 1.37 mmHg in women. According to the results of multiple linear logistic regression analysis, CH had a significant association with younger age (β = −0.05, P = 0.032), female sex (β = 1.83, P < 0.001), reduced maximum keratometry (β = −0.22, P = 0.06), and increased anterior chamber volume (β = 0.01, P = 0.007). CRF had a significant correlation with a younger age (β = −0.06, P = 0.02), female sex (β = 1.01, P = 0.05), central corneal thickness (β = 0.02, P < 0.001), and reduced maximum keratometry (β = −0.39, P = 0.010).
Conclusion: The mean CH and CRF values were low in this sample of the Iranian population aged over 60 years indicating the weaker elasticity of the corneal connective tissue.
How to cite this article:
Shokrollahzadeh F, Hashemi H, Yekta A, Ostadimoghaddam H, Khabazkhoob M. Corneal Biomechanical Parameters after 60-Year-Old.J Curr Ophthalmol 2022;34:284-289
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How to cite this URL:
Shokrollahzadeh F, Hashemi H, Yekta A, Ostadimoghaddam H, Khabazkhoob M. Corneal Biomechanical Parameters after 60-Year-Old. J Curr Ophthalmol [serial online] 2022 [cited 2023 Apr 2 ];34:284-289
Available from: http://www.jcurrophthalmol.org/article.asp?issn=2452-2325;year=2022;volume=34;issue=3;spage=284;epage=289;aulast=Shokrollahzadeh;type=0 |
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