[Ultrasonographic evaluation of optic nerve avulsion with 10 and 20 MHZ probes: case report].
Traumatic optic nerve avulsion is a rare event. A case of complete unilateral optic nerve avulsion after blunt ocular trauma without major damage to other ocular structures is reported. B-scan ultrasonography with 10 and 20 MHz probes proved to be helpful in diagnosing the optic nerve lesion, whereas orbital computed tomography was inconclusive. The prognosis is ominous and it is dependent on the initial visual acuity, which was no light perception in this case. There is no efficient treatment for complete optic nerve avulsion, and no specific treatment was performed in this case.
Lucena
Daniel da Rocha
Dda R
Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Hospital das Clínicas, Ribeirão Preto, SP, Brasil. drlucena@hcrp.fmrp.usp.br
Ribeiro
Jefferson Augusto Santana
JA
Cruz
Antônio Augusto Velasco E
AA
Lucena
Aristóteles Rolim de
AR
Lucena
Levy da Rocha
Lda R
D000062:Accidents, Occupational; D006801:Humans; D008297:Male; D020221:Optic Nerve Injuries / Q000000981:diagnostic imaging* / Q000209:etiology; D014463:Ultrasonography; D014792:Visual Acuity; D014949:Wounds, Nonpenetrating / Q000150:complications*; D055815:Young Adult