BACKGROUND: Ocular ultrasonography is an important tool for evaluating the posterior segment in eyes with opaque media. In cases with dense cataract, where posterior segment evaluation by ophthalmoscopy is not possible, B-scan ultrasonography before surgery can help in surgical planning and guiding the expectations of patients. PURPOSE: To determine the relevance and prevalence of posterior segment abnormalities in patients with dense cataracts prior to surgery by ultrasonography. DESIGN: Prospective diagnostic study. METHODS: Diagnostic B-scan ultrasound was performed on 158 eyes of 132 patients with dense cataract precluding visualization of fundus on ophthalmoscopy from January 2013 to December 2013. Patients were divided in two groups, traumatic (22) and non-traumatic (136). Patients in the age range of 1 to 79 years of both sexes were included. Detailed history and some basic eye examination techniques, like slit lamp and tonometry were done. Patients having already posterior segment lesions and those who had previous history of ocular surgery were excluded from the study. RESULTS: 26(16.4%) patients, out of total 158 patients, had posterior segment lesions. Among traumatic group of 22 patients, 15(68.1%) had positive posterior segment lesions, while only 11(8%) patients in the non-traumatic group of 136 patients had positive posterior segment lesions. Out of the 26 positive cases, retinal detachment was found in 8(5%) patients, 7(4.4%) had posterior vitreous detachment, 7(4.4%) had vitreous hemorrhage, 2(1.26%) had retinal detachment with vitreous hemorrhage, 1(0.63%) had asteroid hyalosis, 1(0.63%) had intra-ocular foreign body. CONCLUSION: We concluded that B-scan ultrasound has significant importance in the preoperative evaluation of patients with dense cataracts to detect pathologies that may influence the surgical strategy and the postoperative visual prognosis.
Magnetic Resonance Imaging (MRI) plays a vital role in sports medicine, providing with accurate diagnosis, prognostic value, and assessment of healing after an injury. Due to its contrast resolution and multiplanar imaging facility, it is considered superior to other imaging modalities for evaluation of injuries in sport. This article provides an illustrative MRI description of variety of sports injuries.
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