EYE DISEASES : CATARACT GLASSBLOWERS (CATARACTA PROFESSIONALIS) - etiology, pathogenesis, symptoms and course of, recognition, prediction and prevention
Etiology. Prolonged exposure to radiant energy, rich in infrared rays. In the old days the disease was observed in workers in smelters and blast furnaces, and particularly in glass-blowers (hence the name).
The pathogenesis. Change the lens fibers under the influence of excessive doses of radiant heat originating either directly or due to violation of exchange intraocular.
Symptoms. Subjective - progressive loss of vision; objective lens opacity, in the early stages ogranichivayutsya back with his pole, later spreading over the whole lens.
For a long, very slow, without any phenomena of irritation. Observed only for workers with great experience work in hot shops.
From ordinary senile cataract in the late stage are not clinically distinguishable, as it usually begins at the age of over 40 years (in workers with 15 - 20 years) and progresses no faster than ordinary senile cataract. In the earliest stages is characterized by the beginning of the development of the disease in the posterior pole of the lens.
Mechanization of the work of glassblowers, workers wearing protective glasses and most importantly the shift in the process of making glass (replacement of open-air baths, closed furnaces in glass production. Currently in a result of these activities glassblowers cataract has become a very rare disease.
In fresh cases the cure is facilitated by the elimination of the action of radiant energy; in advanced cases surgical treatment is required.