2020–2021 BCSC Basic and Clinical Science Course™
12 Retina and Vitreous
Part II: Disorders of the Retina and Vitreous
Chapter 17: Diseases of the Vitreous and Vitreoretinal Interface
In a patient without uveitis, retinitis pigmentosa, or a history of surgical or accidental eye trauma, the presence of pigmented cells in the anterior vitreous (“tobacco dust”), known as a Shafer sign, is highly suggestive of a retinal break (see Chapter 16).
Excerpted from BCSC 2020-2021 series: Section 10 - Glaucoma. For more information and to purchase the entire series, please visit https://www.aao.org/bcsc.