Quantitative Evaluation of Human Lens and Lens Capsule Elasticity by Optical Coherence Elastography Based on a Rayleigh Wave Model.
Abstract
Evaluating the biomechanical properties of the lens and lens capsule is important for the clinical diagnosis and treatment of age-related cataracts and presbyopia. In this study, we developed an optical coherent elastography technique to assess the elasticity of the lens and lens capsule in the human eye. With age, the mean Young's modulus of the lens increased from 12.28 ± 0.87 kPa to 18.59 ± 1.45 kPa, and the lens capsule increased from 6.33 ± 0.36 kPa to 13.33 ± 0.74 kPa. The results showed that the Young's modulus of the lens capsule and lens increased with age, with the Young's modulus of the lens significantly higher than that of the lens capsule. This study reports the assessment of the elasticity of the human lens and lens capsule by the OCE technique, indicating that it may provide a potential clinical tool for advancing research on diseases affecting the lens.
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Research summary
The paper is relevant to longevity research as it investigates the biomechanical properties of the human lens and lens capsule, which are important in the context of age-related cataracts and presbyopia. However, while it contributes to understanding the aging process of the eye, it primarily focuses on diagnostic techniques rather than addressing the root causes of aging or lifespan extension. The findings are solid but represent an incremental advance in the field rather than a major breakthrough.
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