A PRACTICAL clinical method for objective assessment of the optic disc continues to be elusive. Now that various imaging devices for assessing the optic disc have been available for more than a decade, it seems like an appropriate time to discuss their limitations and what clinicians can expect from them. Assessment of the peripapillary retinal nerve fiber layer should be similarly scrutinized, as the instruments that are being marketed for this purpose also have even more limitations than the ones used to assess the optic disc.
Weinreb RN. Assessment of Optic Disc Topography for Diagnosing and Monitoring Glaucoma. Arch Ophthalmol. 1998;116(9):1229-1231. doi:10.1001/archopht.116.9.1229