accuracy of ocular sonography in detection and measurement of intraocular foreign bodies

To evaluate the accuracy of ocular sonography in measurement of size of intraocular foreign bodies [IOFB]. In a case series study, 58 consecutive patients with intraocular foreign body were included. Ocular sonography was performed to detect intraocular foreign body and the results were compared with the same intraoperative findings. Metallic material was found to be the most prevalent one [71%] followed by glasses [12%], stone [8%] and wood [6%]. Ultrasound localized the foreign body lodged in the lens in 10.3%, in the angle in 3.4% and in the vitreous or vitreoretinal region in the rest of them [86.3%]. The mean size measured by ocular sonography was 3.5x4.5 mm and that was reported by the surgeon was 2.9x4 mm. While the reports of sonography in detection and localization of IOFB was completely comparable with surgical findings, size measurements were considerably different from true measurements after intraocular surgery. Ocular sonography showed mostly overestimation in measuring intraocular foreign bodies. Although ocular sonography was one of the best methods for assessment of IOFB, it doesn't have high accuracy in estimation of size of IOFB

Aqueous levels of anti-hekicobacter pylori IgG antibody in patients with primary open angle and pseudoexfoliation glaucoma

Glaucoma is a progressive optic neuropathy and is one of the leading causes of blindness worldwide. Different factors have been contributed in the pathogenesis of glaucoma including H. pylori infection. To determine the levels of anti-H. pylori IgG antibody in the aqueous humor of patients with pseudoexfoliation and primary open angle glaucoma, in comparison with age and sex matched cataract patients. This study was conducted on 41 cases of glaucoma [21 with pseudoexfoliation and 20 with primary open angle glaucoma] and 39 cases of cataract as control group. Aqueous humor was aspirated at the beginning of glaucoma or phacoemulsification cataract surgery in glaucoma and cataract patients, respectively. Anti-H. pylori IgG concentration was measured by means of an enzyme- linked immunosorbent assay. Results: The aqueous levels of anti-H. pylori IgG in primary open angle glaucoma [0.44'0.64 U/ml] had no significant difference with cataract [0.24 +/- 0.52U/ml] and pseudoexfoliation glaucoma group [0.63 +/- 0.71U/ml] [P=0.18 and 0.44, respectively]. However, the concentration of this antibody was higher in the aqueous humor of pseudoexfoliation glaucoma patients compared to the control group [p=0.03]. The results of this study did not support a relation between H. pylori infection and primary open angle glaucoma. The elevated concentration of anti-H. pylori IgG in pseudoexfoliation glaucoma compared to cataract patients may be due to the breakdown of blood-aqueous-barrier