background: silicon hydrogel bandage contact lenses are used to enhance epithelial healing, control surface-generated pain, and prevent epithelial erosions after refractive surgery. considering the importance of faster reepithelialization in preventing complications of photorefractive keratectomy (prk) and the fact that the features and specifications of these commercially-available lenses are ...

background coronary artery disease is the single most important cause of mortality and morbidity in diabetic patients. electrocardiographic stress test is a non-invasive modality to screen significant coronary involvement in minimally symptomatic diabetics. objectives we investigated the positive predictive value (ppv) of this test in comparison with coronary angiography. materials and methods ...