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Mar 15, 2011

Retinopathy of prematurity-prone

Retinopathy of prematurity is an occurrence of retinal vascular disease in preterm infants with low birth weight, mainly due to retinal development at birth in preterm infants is still not perfect, in a variety of factors, formation of retinal neovascularization, such a proliferation of neovascularization in vitreous and retinal detachment due to traction retinal, if treatment is not prompt may be blind forever.


The disease according to the severity of retinopathy can be divided into five periods. The first, second, retinal compared with normal newborn retinal some exception, but this time has not yet noticeable neovascularization, you do not need treatment, the majority of neonatal illness will automatically recover, but to the hospital to check on a regular basis, because there are still some neonatal illness will continue to develop into the third period. Phase III began to emerge in patients of retinal neovascularization, you can approach to condensation or Retinal Photocoagulation in the treatment, most children with the condition can be controlled and improved. But if you do not receive treatment in neovascularization continued proliferation, traction retinal, makes partial retinal detachment occurs, and ultimately lead to retinal detachment, this is the fourth and fifth period of change. If a child of his eyes have a total retinal detachment occurs, there is little hope of cure.


Retinopathy of prematurity is a significant cause of visual impairment and blindness in infants. Where a full 28 weeks of gestation, but children are born at less than 37 completed weeks premature, typically 1000 grams in weight-2,499 grams at birth. With the improvement of medical treatment, survival rates improve in preterm infants, one is the pathogenesis of retinopathy of prematurity in the ever-increasing number. 34 weeks \' gestation, birth weight less than 1500 grams, a history of oxygen after the birth of newborn, incidence of retinopathy is about 60%, shorter during pregnancy or birth weight lower, rates of up to 66% per cent.


Why prone retinopathy of premature infants? This is because normal retinal vascular in pregnancy 36 week-40 week within to reached retinal around Department, if in previously delivery, retinal vascular also is not long to around Department, around Department retinal is deficiency blood, and hypoxia State, to mitigation this deficiency blood hypoxia State, easy generated retinal freshmen vascular, but this freshmen of vascular easy proliferation and to vitreous within growth, led pull retinal caused retinal from, effect in preterm infants visual development, even led blind.


Currently agreed that gestational age and birth weight is an important influencing factors of retinopathy of prematurity, gestational age, and the smaller, lower birth weight, the higher incidence of retinopathy of prematurity, the more serious. Secondly, unreasonable, multiple pregnancy, pregnant women on oxygen in hypertension during pregnancy or taking certain drugs and fetal intrauterine infection, fetal distress, are likely to increase the risk of retinopathy of prematurity. Tackling retinopathy of prematurity, focus on early screening, early detection and early treatment. Not only does this need a doctor\'s diagnosis and treatment, also requires attention to and taking the children on a regular basis to check the eyes of parents, regular follow-up, timely intervention therapy on children\'s visual development is essential in the future.


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