A cataract is a clouding of the eye's lens. If your vision has become blurry, cloudy or dim, or things you see are not as bright or colorful as they used to be, a cataract may have developed in one or both of your eyes. Many people say that their vision with cataracts is similar to the effect of looking through a dirty car windshield.
Painless cloudy, blurry or dim vision
More difficulty seeing at night or in low light
Sensitivity to light and glare
Seeing halos around lights
Faded or yellowed colors
The need for brighter light for reading and other activities
Frequent changes in eyeglass or contact lens prescription
Double vision within one eye
When a cataract causes bothersome vision problems that interfere with your daily activities, your ophthalmologist may recommend surgery to remove the cataract. With cataract surgery, your eye's cloudy natural lens is removed and replaced with a clear artificial lens implant (called an intraocular lens or IOL).