DR. BALA SARASWATHY

DR. KALPANA NARENDRAN

Abstract

The force of the blunt trauma to the eye may result in coup, contrecoup injury or axial expansion of the lens. The coup ocular injury is a result of direct impact, and results in formation of a Vossius ring as a consequence of compression of the pigmented posterior iris epithelial cells against the anterior lens capsule. The contrecoup injury generates shock waves along the line of impact of trauma, and may result in posterior cortical opacification in rosette or stellate shape. The axial expansion causes rapid anterioposterior expansion and may disrupt the lens capsule and/or zonules. These opacifications may appear immediately after, or even up to few months after the trauma is inflicted. In our case both rossette cataract and lens capsule disruption occurred causing broken rossette cataract which is unique.