Ocular complications of prematurity

مستودعات نظام جامعة عين شمس الرقمى

المؤلف Dina Gomaa Gouda
تاريخ الإدخال إلى قاعدة البيانات 2016-11-30T11:43:27Z
تاريخ الإتاحة الألكترونية 2016-11-30T11:43:27Z
تاريخ النشر 2015
المعرف الإلكترونى http://hdl.handle.net/1234567/169773
الخلاصة Preterm infants are infants born after twentieth complete week of gestation and before thirty seven week of gestation weighting between 500 to 2499 gm. at birth,these babies are at increased risk for many newborn complications ; especially ocular complications.A serious complication that some of them face is retinopathy of prematurity.Other complications that cause vision loss later in life include strabismus, errors of refraction , amblyopia , and congenital glaucoma. (Leposky, 1996). Retinopathy of prematurity: Is a disease of the eye affecting prematurely born babies generally having received intensive neonatal care, in which oxygen therapy is used on them due to the premature development of their lungs. It is thought to be caused by disorganized growth of retinal blood vessels which may result in scarring and retinal detachment. ROP can be mild and may resolve spontaneously, but it may lead to blindness in serious cases. As such, all preterm babies are at risk for ROP, and very low birth weight is an additional risk factor. Both oxygen toxicity and relative hypoxia can contribute to the development of ROP. (Windsor, 2009). Errors of refraction: Myopia has been classified as one of the leading causes of blindness and visual impairment in the world today. Environmental factors , genetic factors , premature birth , and the development of retinopathy of prematurity are all known to be associated with the development of specific form of myopia. Eyes of premature infants have shorter axial length , shallower anterior chambers , and more highly curved corneas than eyes of full term infants (Spierer ,2004). Lenticular changes Which include : persistent tunica vasculosa lentis Cataract of prematurity Abnormal ocular motility(Squint). It is a condition in which the eyes are not properly aligned with each others , it typically involves a lack of coordination between the extra ocular muscles ,it may be congenital or acquired late in life. Before the age of six months , coordination of the eye movement is poor . Therefore , it is difficult to diagnose strabismus before six months of age. (Mangano,2009). Amblyopia: Is known as lazy eye, refers to a decrease of vision ,either unilaterally or bilaterally, for which no cause can be found by physical examination of the eye Any problem that interferes with a focused , fusible image during first eight to ten years of life can cause amblyopia. Infants with gestational age less than 32 weeks had a significally higher risk of developing amblyopia than infants with gestational age more than 32 weeks. Most infants with amblyopia were detected at age of two to three years . ( Wood ,2005 ).
المشرفين على الرسالة Prof. Dr. Hassan EL Samaa Dr. Maha Mohamed Ibrahim
اللغة الإنجليزية
العنوان Ocular complications of prematurity
عناوين أخرى مضاعفات العين فى حالات عدم اكتمال النمو
النوع رسالة
إتاحة النص النص متوفر إلكترونياً
الجامعة عين شمس
الكلية Medicine
القسم ophthalmology
الرقم الإلكترونى G4782
عدد الصفحات 150
الدرجة العلمية M.SC

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