Cataract affects the quality of vision in varying ways, including reduced acuity (sharpness), contrast, colour, brightness, experiencing glare, halos, light sensitivity, all different combinations of visual problems. Everyone’s visual needs vary and this is one of the influences for the timing of any intervention.
In some people other conditions can also be present, for example AMD, diabetes, glaucoma, which may impact both the vision, and the outcome of cataract surgery.