Over time, the cloudy patches can become bigger and more of them can develop. As less light is able to pass through the lens, a person's vision is likely to become blurry or cloudy. The cloudier the lens becomes, the more a person's sight is affected.
In younger patients, cataracts may be caused by diabetes, eye injuries or other conditions of the eye, such as uveitis. In older patients, age-related changes in the lens can lead to cataracts. Both genetic and environmental factors may play a part.
In most cases, a cataract will continue to develop and surgery to remove the cataract is the only way to restore vision.
