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Cataract
Cataract Magnified view of a cataract seen on examination with a slit lamp Specialty Ophthalmology Symptoms Faded colors, blurry vision, halos around light, trouble with bright lights, trouble seeing at night[1] Complications Falling, depression, blindness [2] [3] Usual onset Gradual[1] Causes Aging, trauma, radiation exposure, following eye surgery[1] [4] Risk factors Diabetes, smoking tobacco, prolonged exposure to sunlight, alcohol[1] Diagnostic method Eye examination [1] Prevention Sunglasses, not smoking[1] Treatment Glasses, cataract surgery [1] Frequency 60 million (2015)[5] A cataract is a clouding of the lens in the eye which leads to a decrease in vision.
A cataract is a clouding of the lens in the eye which leads to a decrease in vision.[1] Cataracts often develop slowly and can affect one or both eyes.[1] Symptoms may include faded colors, blurry or double vision, halos around light, trouble with bright lights, and trouble seeing at night.[1] This may result in trouble driving, reading, or recognizing faces.[6] Poor vision caused by cataracts may also result in an increased risk of falling and depression.[2] Cataracts cause half of all cases of blindness and 33% of visual impairment worldwide.[3][7]
Cataracts are most commonly due to aging but may also occur due to trauma or radiation exposure, be present from birth, or occur following eye surgery for other problems.[1][4] Risk factors include diabetes, smoking tobacco, prolonged exposure to sunlight, and alcohol.[1] The underlying mechanism involves accumulation of clumps of protein or yellow-brown pigment in the lens that reduces transmission of light to the retina at the back of the eye.[1] Diagnosis is by an eye examination.[1]
Prevention includes wearing sunglasses and avoiding smoking.[1] Early on the symptoms may be improved with glasses.[1] If this does not help, surgery to remove the cloudy lens and replace it with an artificial lens is the only effective treatment.[1] Surgery is needed only if the cataracts are causing problems and generally results in an improved quality of life.[1][8] Cataract surgery is not readily available in many countries, which is especially true for women, those living in rural areas, and those who do not know how to read.[4][9]
Learn more / En savoir plus / Mehr erfahren.
https://www.scoop.it/topic/21st-century-innovative-technologies-and-developments/?&tag=Katarakt
A cataract is a clouding of the lens in the eye which leads to a decrease in vision.[1] Cataracts often develop slowly and can affect one or both eyes.[1] Symptoms may include faded colors, blurry or double vision, halos around light, trouble with bright lights, and trouble seeing at night.[1] This may result in trouble driving, reading, or recognizing faces.[6] Poor vision caused by cataracts may also result in an increased risk of falling and depression.[2] Cataracts cause half of all cases of blindness and 33% of visual impairment worldwide.[3][7]
Cataracts are most commonly due to aging but may also occur due to trauma or radiation exposure, be present from birth, or occur following eye surgery for other problems.[1][4] Risk factors include diabetes, smoking tobacco, prolonged exposure to sunlight, and alcohol.[1] The underlying mechanism involves accumulation of clumps of protein or yellow-brown pigment in the lens that reduces transmission of light to the retina at the back of the eye.[1] Diagnosis is by an eye examination.[1]
Prevention includes wearing sunglasses and avoiding smoking.[1] Early on the symptoms may be improved with glasses.[1] If this does not help, surgery to remove the cloudy lens and replace it with an artificial lens is the only effective treatment.[1] Surgery is needed only if the cataracts are causing problems and generally results in an improved quality of life.[1][8] Cataract surgery is not readily available in many countries, which is especially true for women, those living in rural areas, and those who do not know how to read.[4][9]
Learn more / En savoir plus / Mehr erfahren.
https://www.scoop.it/topic/21st-century-innovative-technologies-and-developments/?&tag=Katarakt