Vitreopapillary traction in nonarteritic anterior ischemic optic neuropathy
Iranian Journal of Ophthalmic Research. 2006; 1 (2): 110-112
em Inglês
| IMEMR
| ID: emr-77036
ABSTRACT
To describe the association between vitreous traction on the optic disc and nonarteritic anterior ischemic optic neuropathy [NAION]. Eighty three eyes of 83 patients with NAION were evaluated by optical coherence tomography [OCT] for detecting vitreous adhesion to the optic nerve head with separation from the adjacent retina [partial posterior vitreous detachment]. Eyes which were negative for such adhesion underwent ultrasonography to detect complete posterior vitreous detachment [PVD]. Fifty male and 33 female subjects with mean age of 51.9 +/- 10 years were studied. Partial PVD with optic nerve head adhesion was found in 54 patients [65.1%] using OCT. Ultrasonography detected complete PVD in all other eyes with optically empty spaces on OCT. Vitreous traction on the optic nerve head from partial PVD may play a causative role in some cases of NAION. This traction may impair vascular supply and/or axoplasmic flow leading to signs and symptoms of NAION
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Índice:
IMEMR (Mediterrâneo Oriental)
Assunto principal:
Disco Óptico
/
Corpo Vítreo
/
Estudos Transversais
/
Descolamento do Vítreo
/
Tomografia de Coerência Óptica
Tipo de estudo:
Estudo de prevalência
Limite:
Feminino
/
Humanos
/
Masculino
Idioma:
Inglês
Revista:
Iran. J. Ophthalmic Res.
Ano de publicação:
2006
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