Article Text
Abstract
Aim: To describe lesions resembling optic disc duplication and highlight their unusual visual fields. The authors also report the first case of pseudo-duplication of the optic disc with overlying retinal nerve fibre layer.
Methods: Retrospective, non-comparative review of case notes. Humphrey visual fields and OCT-3 imaging were performed.
Results: All 11 cases represented peripapillary chorioretinal coloboma, some of which lie superior to the optic disc. A double blind spot or superior hemifield defects can be demonstrated by automated visual field testing.
Conclusion: Clinical examination and identification of bridging retinal vessels from the true optic disc to the second pseudo disc can usually avoid unnecessary invasive and non-invasive investigations.
- FFA, fluorescent fundus angiography
- OCT, optical coherence tomography
- hemifield
- coloboma
- optic disc
- duplication
- optical coherence tomography
- FFA, fluorescent fundus angiography
- OCT, optical coherence tomography
- hemifield
- coloboma
- optic disc
- duplication
- optical coherence tomography