Vossius Ring

A Vossius ring is a well-circumscribed complete or incomplete ring of pigment deposited on the anterior lens capsule surface, usually as a result of significant blunt eye trauma. e. It has the same diameter as the contracted pupil, and is due to impression of the iris on the lens as a result of the force of a concussion injury, which drives the cornea and iris backward. Due to the impact of the trauma, the iris diaphragm moves backward and touches the lens capsule. As a result, the iris pigments form a ring on the anterior capsule called as Vossius ring.

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