POSTERIOR SEGMENT PATHOLOGIES IN DENSE LENS CHANGES

Abstract

INTRODUCTION : B scan makes use of high frequency ultrasound waves which are reected back and are converted to electric signals. The data which is not available from the clinical examination can be visualised by using the ultrasound B-scan. It is of immense visual prognostic value to modify the surgical plan in eyes who have hazy media. AIM : Evaluation of posterior segment using ultrasound B scan(US-B) in patients with dense lens changes Co relation of the type of dense lens changes with different posterior segment pathologies. METHODOLOGY : Study sample : 100 Study period : 1st July 2019 to 31st June 2020 Study duration :12 months Study area :All the patients presenting to Ophthalmology OPD at Meenakshi medical college and research institute , Kanchipuram ,Tamil Nadu. RESULTS : Majority of the B-scans turned out to be normal in dense lens changes. Posterior vitreous detachment, Asteroid hyalosis and Retinal detachment are the common abnormalities seen in the decreasing order of their occurrence.