Cataract - Wikipedia
A cataract is a cloudy area in the lens of the eye that leads to a decrease in vision of the eye. [1] [7] Cataracts often develop slowly and can affect one or both eyes. [1] Symptoms may include faded colours, blurry or double vision, halos around light, trouble with bright lights, and difficulty seeing at night. [1]
Cataracts - Symptoms and causes - Mayo Clinic
Symptoms of cataracts include: Clouded, blurred or dim vision. Trouble seeing at night. Sensitivity to light and glare. Need for brighter light for reading and other activities. Seeing "halos" around lights. Frequent changes in eyeglass or contact lens prescription. Fading or yellowing of colors. Double vision in one eye.
Cataracts - Diagnosis and treatment - Mayo Clinic
To determine whether you have a cataract, your eye doctor will review your medical history and symptoms. They also will perform an eye exam. Your doctor may do several tests, including: Vision test. A vision test, also called a visual acuity test, uses an eye chart to measure how well you can read a series of letters.
What Are Cataracts? - American Academy of Ophthalmology
2024年10月9日 · Cataracts are a very common reason people lose vision, but they can be treated. You and your ophthalmologist should discuss your cataract symptoms. Together you can decide whether you are ready for cataract surgery.
What Are Cataracts? - WebMD
2024年2月13日 · Cataracts form when protein builds up in the lens of your eye and makes it cloudy. This keeps light from passing through clearly. It can cause you to lose some of your eyesight. There are many...
Cataracts - National Eye Institute
2024年12月10日 · 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 …
Cataract: Symptoms, diagnosis, and treatment - Harvard Health
2014年12月28日 · A cataract is a clouding of the lens. This distorts or blocks the passage of light through the lens, causing cloudy or blurred vision, other visual problems, and even blindness. The name cataract comes from the term for "huge waterfall," which is how some people describe their clouded sight: like trying to look through a waterfall.
Cataracts: Signs, Symptoms & Treatment Options - Cleveland Clinic
Cataracts are cloudy areas that form on your eye’s lens. Age-related cataracts are the most common type. Symptoms include blurry vision and glare around lights. Cataract surgery removes your clouded lens and replaces it with a clear artificial lens called an IOL. Providers recommend surgery when cataract symptoms interfere with your daily life.
Cataract - EyeWiki
A cataract is a clouding of the natural intraocular crystalline lens that focuses the light entering the eye onto the retina. This cloudiness can cause a decrease in vision and may lead to eventual blindness if left untreated.
Cataract: Types, Causes and Risk Factors - Healthline
2017年9月29日 · What Is a Cataract? A cataract is a dense, cloudy area that forms in the lens of your eye. It develops slowly and eventually interferes with your vision. A cataract begins when proteins in the...