purpose: to investigate the relationship between higher-order aberrations (hoas) and contrast sensitivity function (csf) in myopes. methods: in this cross-sectional study, hoas and csf were measured in myopic eyes over a 6-mm pupil. pupil diameter was measured in photopic condition. the correlation between hoas and csf was investigated using multivariate linear regression analysis. results: sev...

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purpose : the aim of this study was to evaluate the effect of adjuvant treatments on contrast sensitivity in patients with clinically significant macular edema (csme) treated with macular photocoagulation (mpc). methods : forty eight eyes from 30 patients with non-proliferative diabetic retinopathy (npdr) and csme were included in a prospective randomized clinical trial between august 2008 and ...

introduction breast cancer is one of the most common types of cancer among women.  early detection of breast cancer is the key to reducing the associated mortality rate. the presence of microcalcifications clusters (mccs) is one of the earliest signs of breast cancer. due to poor imaging contrast of mammograms and noise contamination, radiologists may overlook some diagnostic signs, specially t...

Objective- To evaluate the effect of epidural anesthesia with lidocaine and bupivacaine on transit time of barium sulfate contrast medium through gastrointestinal (GI) tracts in healthy dogs. Design- Prospective, randomized experimental study. Animals-Five healthy mixed breed male dogs with 19.2±7.8 months age and 19.9±3.3 kg weight Procedure- The animals received one of the treatments of sa...

purpose: to compare aspheric and spherical hydrophilic intraocular lenses (iols) in terms of contrast sensitivity and visual acuity in photopic and mesopic conditions. methods: this triple-blind randomized clinical trial was performed on 40 eyes of 40 patients at al-zahra eye center, zahedan, iran. the eyes were randomized to standard phacoemulsification procedure with spherical (adapt, b&l;) o...