A mature cataract is denser than an immature cataract. The symptoms involve blurry vision, double vision, glares, and halos around the light sources. An immature cataract only causes minor vision problems and doesn’t affect the quality of the life of the individual. Mature cataract symptoms are much worse and very likely to affect the individual’s quality of life. Even reading becomes difficult when the cataract matures. Cataract surgery is usually recommended at this stage.