A framework of biomarkers for visual system aging: a consensus statement by the Aging Biomarker Consortium

The visual system is essential for human perception, converting light signals into electrical impulses and transmitting them to the brain to process environmental information. As individuals age, their physiological functions gradually decline, leading to age-related vision impairment that significantly impacts the quality of life in elderly individuals. China is home to the world's largest aging population and faces significant challenges in combating visual system aging through effective treatments and interventions. In response to this challenge, the Aging Biomarker Consortium (ABC) of China has developed a consensus statement on biomarkers of visual system aging by integrating cutting-edge global research and synthesizing evidence-based medicine with clinical expertise. This consensus provides a multi-dimensional evaluation framework encompassing functional, morphological, and molecular biomarkers. Validated biomarkers for each domain are recommended not only to facilitate the early detection of vision changes but also to provide insights into the progression of age-related ocular diseases. By advancing this initiative, ABC aims to revolutionize visual health management in aging societies, ultimately improving outcomes for elderly populations in China and globally.