Effects of cataract surgery on the cognitive decline of elderly patients: An updated review

Cataracts and cognitive decline are two distinct eye and brain disorders, mainly affecting age-related individuals. It has been demonstrated that cataract surgery is beneficial in substantially reducing the risk of dementia. Visual impairments and interventions to treat vision may improve dementia outcomes. Particularly, sensory disorders may lead to social isolation and reduce cognitive-related simulations, increasing the risk of brain structural damage, thus reducing cognitive function. We selectively considered PubMed produced published literature (1987-2022) and evaluated the references used in reputable primary articles and reviews for this literature. The findings have implications for managing older patients who are particularly at risk for cataracts and age-related dementia. Due to the remarkable correlation between cataract extraction and a lower risk of dementia, the affected patients and their families are expected to anticipate a substantial improvement in quality of life. There is a need for more research into the pathways via which cataract removal may influence the risk of dementia.