Blindness

Blindness refers to the condition of lacking visual perception due to physiological or neurological factors. It can be complete, where there is no light perception at all, or partial, where limited vision exists. Causes of blindness can include eye diseases (such as glaucoma or cataracts), injuries, genetic conditions, or damage to the visual pathways in the brain. Blindness may be temporary or permanent, and it can significantly affect a person’s ability to navigate and interact with their environment. Individuals with blindness often rely on other senses, such as touch, hearing, and smell, as well as assistive technologies, to aid in daily living. The term can also encompass a range of visual impairments, including low vision, where individuals have some usable vision but it is not sufficient for tasks such as reading or recognizing faces.