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Cataracts - Symptoms and causes - Mayo Clinic A cataract is a clouding of the lens of the eye, which is typically clear For people who have cataracts, seeing through cloudy lenses is like looking through a frosty or fogged-up window
What Are Cataracts? - American Academy of Ophthalmology A cataract is when your eye's natural lens becomes cloudy Proteins in your lens break down and cause things to look blurry, hazy or less colorful We are all born with a natural lens inside each of our eyes The lens bends (refracts) light rays that come into the eye to help us see
Cataract - Wikipedia Cataract formation is primarily driven by oxidative stress, which damages lens proteins, leading to their aggregation and the accumulation of clumps of protein or yellow-brown pigment in the lens This reduces the transmission of light to the retina at the back of the eye, impairing vision
What Are Cataracts and How Can They Be Treated? - Vision Center Common cataract symptoms include gradual blurry vision, glare from lights, trouble seeing at night, and reduced color clarity Recognizing these symptoms early can help you manage your vision proactively That’s why regular comprehensive eye exams are essential
Cataract - Prevent Blindness What is a Cataract? A cataract is a clouding of the eye’s lens, which blocks or changes the passage of light into the eye The lens of the eye is located behind the pupil and the colored iris, and is normally transparent The lens helps to focus images onto the retina – which transmits the images to the brain Your vision may become blurry or dim because the cataract stops light from
Cataracts - National Eye Institute A cataract is a cloudy area in the lens of your eye More than half of all Americans age 80 and older either have had cataracts or have had surgery to get rid of cataracts Learn about the types, symptoms, and causes of cataracts and how your doctor will diagnose and treat them
Recognizing a Cataract in Your Eye - Healthline When a cataract first develops, it can't be seen without special instruments But as it grows, a cataract can cloud your eye's lens, making the world look hazy and less colorful
Cataracts - Johns Hopkins Medicine A cataract is a cloudy or thick area over the lens of the eye This is an area that is normally clear As this thickening occurs, it keeps light rays from passing through the lens and focusing on the retina