Some people may or may not be aware that cataract is developing It can start at the edge of the lens and initially may not cause problems with vision. Generally, as cataract develops, people experience blurring or hazing of vision. Often they become more sensitive to light and glare. There may be a need to get new prescriptions for glasses more often when cataract is developing. When cataract worsens, stronger glasses no longer improve sight.
Objects have to be held close to the eye to be seen.