Pseudoduplication of the optic nerve head.
BACKGROUND
Pseudo-doubling of the optic nerve head is a spectacular clinical entity, in which a lesion resembling an optic disk appears adjacent to the true optic disk.


METHODS
A case of unilateral pseudo-doubling of the optic disk with bilateral optic nerve pits is presented.


CONCLUSIONS
The lesion is congenital, and represents a chorioretinal coloboma with optic disk involvement. Pseudo-doubling can be differentiated from true doubling of the optic nerve by the imaging techniques of ultrasonography, computerized tomography, and magnetic resonance imaging.
Pesudovs
K
K
Department of Ophthalmology, Flinders Medical Centre, Bedford Park, Australia.
Weisinger
H S
HS
D000368:Aged; D000369:Aged, 80 and over; D003103:Coloboma / Q000175:diagnosis*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D009898:Optic Disk / Q000002:abnormalities* / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography; D014792:Visual Acuity