Gipoparatireoz i katarakta
https://doi.org/10.14341/ket2009549-14
Abstract
The causes and mechanisms of cataract development are not studied well enough up to the present. Hypoparathyroidism is characterized by the decrease of parathyroid glands function and decrease of parathyroid hormone production in the most cases. The main clinical manifestation of hypoparathyroidism is a low serum calcium level. Cataract is one of the most important but not well studied complications of hypoparathyroidism. According to clinical researches the cause of cataract development is post-operative hypoparathyroidism which caused post-operative tetany. There is a latent development of hypoparathyroidism apart from manifestation form with tetany, when the ion pomp lens dysfunction is the basic in pathogenesis of cataract development. Besides, cataract may be caused by long-standing hypocalcaemia associated with hyperphosphathemia, that results to the landing of mineral ion deposits in the lens. Thus, there is progressive cataract with hypocalcaemia, though pathogenesis is not studied in a detailed way at present. Nevertheless, the normal serum calcium level can present cataract development. So, early diagnosis and treatment of hypocalcaemia may be useful in controlling the development of cataract.
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