Evaluation of posterior segment ocular disorders using B-scan ultrasonography in patients attending a tertiary care teaching hospital Telangana India

Abstract

Background: Ultrasonography is one of the most useful non-invasive techniques for evaluation of the Posterior segment of the eye. Objectives: to evaluate the posterior segment and identify any posterior segment disorders, using diagnostic B - scan ultrasonography in patients presenting with opaque ocular media. Methodology: Patients with opaque media were subjected for evaluation of the Posterior segment using a standard Ultrasound unit - MARVEL B-scan, consisting of diagnostic B scan and A scan biometry. Ultrasound probe was placed over the globe of the closed eye after applying coupling gel over the probe. The globe was scanned thoroughly using transverse, longitudinal, oblique and axial scans.Ultrasound image was analysed for any abnormalities both in real time and after freezing the image and findings were documented Results: Almost ¾ th of the patients with ocular trauma were found to have detectable posterior segment pathologies on b scan. Retinal detachment combined with vitreous hemorrhage was most common b scan finding in patients with ocular trauma.Posterior vitreous detachment was commonly observed pathology in 10 eyes followed by vitreous hemorrhage in 7 patients. Conclusion: B-scan ultrasonography is useful in the assessment of ocular traumatic and non – traumatic lesions and supplements clinical examination with valuable information.