What Is a Cataract? A cataract is a dense Willian Brazil Jersey , cloudy area that forms in the lens of the eye. A cataract begins when proteins in the eye form clumps that prevent the lens from sending clear images to the retina. The retina works by converting the light that comes through the lens into signals. It sends the signals to the optic nerve, which carries them to the brain.
Symptoms of Cataracts Common symptoms of cataracts include: 鈥?blurry vision 鈥?trouble seeing at night 鈥?seeing colors as faded 鈥?increased sensitivity to glare 鈥?halos surrounding lights 鈥?double vision in the affected eye 鈥?a need for frequent changes in prescription glasses What Causes Cataracts? There are several underlying causes of cataracts. These include: overproduction of oxidants Weverton Brazil Jersey , which are oxygen molecules that have been chemically altered due to normal daily life 鈥?smoking 鈥?ultraviolet radiation 鈥?the long-term use of steroids and other medications 鈥?certain diseases, such as diabetes 鈥?trauma 鈥?radiation therapy Types of Cataracts There are different types of cataracts. They e classified based on where and how they develop in your eye. 鈥?Nuclear cataracts form in the middle of the lens and cause the nucleus Walace Brazil Jersey , or the center, to become yellow or brown. 鈥?Cortical cataracts are wedge-shaped and form around the edges of the nucleus. 鈥?Posterior capsular cataracts form faster than the other two types and affect the back of the lens. 鈥?Congenital cataracts Thiago Silva Brazil Jersey , which are present at birth or form during a baby鈥檚 first year, are less common than age-related cataracts. 鈥?Secondary cataracts are caused by disease or medications. Diseases that are linked with the development of cataracts include glaucoma and diabetes. The use of the steroid prednisone and other medications can sometimes lead to cataracts. 鈥?Traumatic cataracts develop after an injury to the eye Taison Brazil Jersey , but it can take several years for this to happen. 鈥?Radiation cataracts can form after a person undergoes radiation treatment for cancer. Risk Factors of Cataracts Risk factors associated with cataracts include: 鈥?older age 鈥?heavy alcohol use 鈥?smoking 鈥?obesity 鈥?high blood pressure 鈥?previous eye injuries 鈥?a family history of cataracts 鈥?too much sun exposure 鈥?diabetes 鈥?exposure to radiation from X-rays and cancer treatments Treatment of Cataracts Surgery is the only way to get rid of a cataract, but you may not need to get surgery right away. Your doctor might suggest surgery if your cataracts start getting in the way of everyday activities like reading Rodriguinho Brazil Jersey , driving, or watching TV. During cataract surgery Rodrigo Caio Brazil Jersey , the doctor removes the clouded lens and replaces it with a new, artificial lens (also called an intraocular lens Ricardo Oliveira Brazil Jersey , or IOL).
If you鈥檙e unable or uninterested in surgery, your doctor may be able to help you manage your symptoms. They may suggest stronger eyeglasses Renato Augusto Brazil Jersey , magnifying lenses, or sunglasses with an anti-glare coating. Prevention of Cataracts To reduce your risk of developing cataracts: 鈥?protect your eyes from UVB rays by wearing sunglasses outside 鈥?have regular eye exams 鈥?stop smoking 鈥?eat fruits and vegetables that contain antioxidants 鈥?maintain a healthy weight keep diabetes and other medical conditions in check
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