This patient had features suggesting an atypical optic neuritis, particularly haemorrhages that accompanied optic disc
Each participant had baseline optic disc
images taken using the HRT at the start of the study and had follow-up images taken annually.
Fundus assessment at the eye examination now revealed a normal optic nerve head appearance in the right eye, with a flat optic disc
and well defined margins visible (Figure 1, right).
The large optic disc
sizes found in myopia might be explained, in part, by stretching of the eye, and therefore a deformation of the lamina cribrosa.
b) Large sized optic discs
with CD ratios of Right 0.
1) Congenital optic nerve anomalies without systemic associations include tilted disc, disc drusen, optic disc
pit and myelinated nerve fibres.
In many cases though, it is not immediately clear whether an optic disc
is physiologically unusual, or if it is pathologically damaged.
Stage 4 macular holes show enlargement of this round defect, which is then surrounded by a cuff of subretinal fluid with complete posterior vitreous separation from the posterior pole and optic disc
She had no symptoms but her optometrist referred her due to suspicious appearances of the optic discs
in both eyes.
5% of all optic discs
, whilst the GDx VCC and HRT devices accurately diagnosed 93.
Conversely, large optic discs
may appear to show little change in the NRR distribution in the presence of progressive glaucoma.
Her research showed that large optic discs
tend to produce false positives and that small optic discs
need extra care as early glaucoma damage could be missed - a useful tip for interpreting HRT data.