Optic nerve grey crescent

Epidemiology of the optic nerve grey crescent in the Reykjavik Eye Study.

AIM To establish the epidemiology of the grey crescent in a white population within the age range most susceptible to glaucoma. METHODS Bruce Shields was first to use this term to describe a localised, physiological pigmentation of the optic nerve neuroretinal rim tissue that is distinct from peripapillary pigmentation. An experienced glaucomatologist (KFD) evaluated stereofundus photographs ...

Can Grey Crescent Prevent Macular Detachment in Case of Optic Disc Pit? a Case Report and Hypothesis

We here describe a case with bilateral optic disc pit and bilateral assymetrical grey crescent, its ocular coherence tomography findings and the associated unilateral maculopathy in the eye with incomplete crescent.The interesting observation is that the eye in which the grey crescent encompassed the optic pit did not have any maculopathy in contrast to the other eye which had macular retinosch...

Optic nerve ischemia: optic nerve sheath decompression alone or with optic nerve decompression.

Effect of scuba-diving on optic nerve and sheath diameters

  Background :There is not any data available about the effect of high bar pressure condition on intracranial pressure. In this study, the effect of diving on the optic nerve and sheath diameters as non-invasive markers of intracranial pressure has been investigated.   Methods : Twenty professional male divers from twenty one volunteers were chosen for this cross-sectional study. Only one perso...

Optic Nerve Head Drusen Mimicking Optic Nerve Tumor

1. Castiblanco CP, Adelman RA. Sympathetic ophthalmia. Graefes Arch Clin Exp Ophthalmol 2009;247:289-302. 2. Cha DM, Woo SJ, Ahn J, Park KH. A case of sympathetic ophthalmia presenting with extraocular symptoms and conjunctival pigmentation after repeated 23-gauge vitrectomy. Ocul Immunol Inflamm 2010;18:265-7. 3. Haruta M, Mukuno H, Nishijima K, et al. Sympathetic ophthalmia after 23-gauge tra...