• Blindness Due to cataracts


    Cataract (Cataract) is an eye disease causing blindness. Symptoms such as webbed eyepiece, cloudy, or turbid so that light can not enter, and blurred vision. If not treated quickly, cataracts can cause blindness

    Cataracts are caused by many things such as prolonged eye exposure to sunlight / ultravioloet or other radiation sources. Then diseases like diabetes, high blood pressure, old age, or physical trauma can also cause cataracts. Heredity / genetics also influences cataracts at an earlier age. to overcome the disease Cataract Cataract surgery is usually done

    Genetic factors are often a cause of congenital cataracts and positive family history may also play a role in predisposing someone to cataracts at an earlier age, the phenomenon of "anticipation" in pre-senile cataracts. Cataracts may also be produced by eye injury or physical trauma.

     A study among Icelandair pilots showed commercial airline pilots are three times more likely to develop cataracts than people with non-flying jobs. It is thought to be caused by excessive exposure to radiation coming from outer space.

    Cataracts are also unusually common in persons exposed to infrared radiation, such as glassblowers who suffer from "exfoliation syndrome". Exposure to microwave radiation can cause cataracts. Atopic or allergic conditions are also known to accelerate the development of cataracts, especially in children.


    Cataracts can be partial or complete, stationary or progressive, hard or soft.

    Some drugs can induce cataract development, such as corticosteroids and Ezetimibe and Seroquel.

    There are various types of cataracts, eg nuclear, cortical, mature, and hypermature. Cataracts are also classified by their location, eg posterior (classically due to steroid use) and anterior (common (senile) cataract related to aging).


    Associations with systemic conditions

         chromosomal disorders
             Alport syndrome
             Cri-du-chat syndrome
             Conradi Syndrome
             myotonic dystrophy
             Patau syndrome
             Schmid-Fraccaro syndrome
             Trisomy 18 (Edward's syndrome)
             Turner syndrome
             Skin and mucous membrane disease
                 atopic dermatitis
                 Basal cell nevus syndrome
                 ichthyosis
                 pemphigus
                 Metabolic and nutritional diseases
                     Aminoaciduria (Lowe syndrome)
                     diabetes mellitus
                     Fabry disease
                     Galactosemia / galactosemic cataract
                     homocystinuria
                     Hypervitaminosis D
                     hyperparathyroidism
                     Hypothyroidism
                     Mucopolysaccharidoses
                     Wilson disease
                     communicable disease
                         congenital
                             Herpes simplex Congenital
                             congenital syphilis
                             Cytomegalic inclusion disease
                             rubella
                             other
                                 cysticercosis
                                 leprosy
                                 onchocerciasis
                                 toxoplasmosis
                                 Systemic toxic substances introduced
                                     corticosteroids
                                     haloperidol
                                     Miotics
                                     Triparanol
     

1 comments:

  1. A cataract is an opacity that forms on the lens of the eye, initially making vision blurry or clouded. If left untreated, cataracts will cause blindness; in fact, they are the leading cause of blindness in the world. Cataract blindness can set in slowly, which is why it is important for people to get regular eye examinations to ensure that their eyes are healthy. Fortunately, blindness caused by cataracts can be treated, especially if it is caught early, and the surgery has a good success rate.

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