title: Foreign body in ocular coats causing a pseudo optic nerve head shadow.
abstract: Small intraocular foreign body in the outer coats of the eye may be wrongly interpreted as optic nerve head on ultrasound imaging. Such errors can be avoided by performing multiple sonography scans in different axes.
authors.affiliation: Dr. Rajendra Prasad Centre for Ophthalmic Sciences, AIIMS, New Delhi 110 029, India.
authors.forename: Brijesh
authors.initials: B
authors.lastname: Takkar
authors.affiliation: Dr. Rajendra Prasad Centre for Ophthalmic Sciences, AIIMS, New Delhi 110 029, India.
authors.forename: Vinod
authors.initials: V
authors.lastname: Kumar
authors.affiliation: Dr. Rajendra Prasad Centre for Ophthalmic Sciences, AIIMS, New Delhi 110 029, India.
authors.forename: Renu
authors.initials: R
authors.lastname: Agrawal
authors.affiliation: Dr. Rajendra Prasad Centre for Ophthalmic Sciences, AIIMS, New Delhi 110 029, India.
authors.forename: Raghav
authors.initials: R
authors.lastname: Ravani
authors.affiliation: Dr. Rajendra Prasad Centre for Ophthalmic Sciences, AIIMS, New Delhi 110 029, India.
authors.forename: Shorya
authors.initials: S
authors.lastname: Azad
keywords: Double optic nerve shadow; Intraocular foreign body; Pseudo duplication of optic nerve