Everybody is aware of this fact that Optic Nerve Head (ONH) is a very important structure of eye which is responsible for the normal conduction responsible for sight. So an ophthalmologist should have a complete knowledge of its anatomy and physiology. All of are aware of the recent aspects of ONH.
Blood supply PCA after supplying the disc has segmental distrubution and choroidal arteries are end arteries. So if blood suly to PCA is impared due to any cause it will not only produces changes in disc but in epipapllary choriod. Characterized by cavernous degeneration of ONH secondly ophthalmologist shoud be promt and correct in d d of papilledema papillits and r b n also shold be able to diffenciate some cong anamolies of disc like Drusen Congenital pit of disc Congenital tilted disc syndrme Edullated uptc nrve fibers Congenital coloboma of disc Hypoplasia Morning glory disc syndrme…
