نتایج جستجو برای: experimental cataract
تعداد نتایج: 730150 فیلتر نتایج به سال:
1. Background 1.1. Definition of cataract 1.2. Applied anatomy and physiology 1.3. Diagnosis of Cataract 1.4. Causes of Cataract 1.5. The prevalence of Blindness and Cataract Blindness in Africa 1.6. The impact of cataract blindness 1.7. Management of cataract 1.8. Complications 1.9. Expected Results 1.10. The cost of cataract surgery 2. Equipment and human resources required to establish a cat...
Although cataract is very common and its detection seems apparently easy especially in the mature cataract, its quantitative description to determine the critical value of diagnosis is too difficult. Non-invasive evaluation of the mechanical properties of eye is hampered by the absence of in-vivo methods for direct assessment of the axial length of eye, lens and cornea. In the present study...
The pathogenesis of cataract has been found to be influenced by a number of factors including oxidative stress. Catalase, glutathione peroxidase (GPX), and superoxide dismutase (SOD) are some of the antioxidant enzymes that protect the body from oxidative damage. The present study investigates the activities of erythrocyte catalase, GPX, and SOD with respect to senile cataract (non-diabetic cat...
Cataract is defined as an opacification of the lens resulting in visual impairment. Worldwide, it is the number one cause of blindness and there are currently no strategies to prevent the onset of the disease. Cataract surgery is the most commonly performed elective intervention in industrialized countries. The condition has thus major impact on national and international health care systems. E...
We compared the progression of lens opacification with the time course of oxidation of lens proteins under conditions of streptozotocin-induced experimental diabetes in rats. By the end of the 17th week, approx. 50% of the diabetic animals developed mature cataracts. During the following month, 95% of the eyes in the diabetic group became cataractous. In the course of lens opacification we obse...
Introduction: Cataract is an opacified lens and senile cataract is a common disorder. It is desirable to reduce intraocular pressure (IOP) in order to minimize intra and post operative difficulties and complications. Many researches have studied the effects of muscle relaxants on IOP. Comparison effect of atracurium and pancuronium on IOP has been evaluated in one study with a small sample size...
Echium amoenum is an Iranian indigenous medicinal plant. In this research the effect of hydroalchoholic extract of this plant on sodium-selenite induced cataract formation was evaluated. Fifty five white rat pups were selected and divided into six groups. In first group (control 1) no elements injected. Second group (control 2) was received normal saline on 11-18 postpartum. Hydroalchoholic ext...
Traumatic cataract was induced in rat and rabbit. The progression of the posterior subcapsular cataract and the wound healing were followed by quantitative microradiography. This method makes it possible to determine the dry mass content and to calculate the refractive indices in the lens. In the injured rat lens a reduced dry mass concentration was determined in both the wound region and the p...
background: complaining of tearing was found in some of our patients after phacoemulsification surgery for senile cataract. secondary acquired lacrimal drainage obstruction has been proposed to happen due to different causes. this study was performed at feiz hospital in isfahan, iran from september to december of 2004 to evaluate the effects of phacoemulsification surgery on tear drainage in ey...
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