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Vossius ring
Jun 22, 2019
Volume 25, Number 2
Saurabh Deshmukh, DNB | Department of Ophthalmology, Sri Sankaradeva Nethralaya, Guwahati, Assam, India
Harsha Bhattacharjee, MS, FRCP(Edin), FRCS(Glas) | Department of Ophthalmology, Sri Sankaradeva Nethralaya, Guwahati, Assam, India
Krati Gupta, DNB | Department of Ophthalmology, Sri Sankaradeva Nethralaya, Guwahati, Assam, India
A 42-year-old woman was referred to Sri Sankaradeva Nethralaya for decreasing visual acuity over the previous 4 months. She had suffered blunt ocular trauma from a punch to the face 6 months prior to presentation. On examination, visual acuity was 20/40 in each eye. She was noted to have a well-circumscribed, incomplete ring of brown, dotlike deposits on the anterior lens capsule of the right eye. The Vossius ring, a circular (or semicircular, as in this case) ring of iris pigment deposits, is formed in cases of blunt ocular trauma and is usually the same diameter as the pupil at the time of injury. It is formed as a result of the concussive force, which pushes the cornea and iris inward and causes the pupillary ruff to press against the anterior lens capsule, thereby leading to rupture of cells and deposition of pigments. This patient regained full visual acuity of 20/20 in each eye with spectacle correction.

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