WebSmall optic discs generally have small-to-absent optic cups. Large optic discs generally have large optic cups, but they may have a greater number of nerve fibers than small discs.3 Asymmetry of the cup-to-disc ratio greater than 0.2 or notching or focal or diffuse thinning of the rim of the optic nerve is characteristic of glaucomatous changes. WebDec 15, 2004 · Ironically, a similar situation has occurred with the use of cup-to-disc ratio (C/D) to help diagnose and monitor glaucoma. Bo Bengtson showed 25 years ago that normal small discs have small cups and …
Neuro-Ophthalmological Optic Nerve Cupping: An Overview
WebIn NAION, patients may have a structural “disc at risk” of a small cup-to-disc ratio (CDR) that might predispose to disc oedema and secondary ischaemia.10 Likewise, translaminar pressure with subsequent optic nerve damage in primary open angle glaucoma (POAG) can manifest as a typical glaucomatous cupping with an increased CDR.11 WebNov 13, 2024 · Abstract. Optic nerve cupping or enlargement of the cup-to-disc ratio is widely recognized as a feature of glaucoma, however it may also occur in non-glaucomatous optic neuropathies. The most well-recognized non-glaucomatous optic neuropathies that cause cupping include compressive optic neuropathies, arteritic anterior ischemic optic ... shannon sharpe at laker game
Neuro-Ophthalmological Optic Nerve Cupping: An Overview
WebApr 25, 2008 · All patients had a C/D ratio greater than 0.3 in the affected eye compared with 7.1% of the fellow eyes; the C/D ratio increase after optic neuritis was 0.1–0.2 in the affected eye. WebMain Outcome Measures: Glaucoma was diagnosed using the International Society of Geographical and Epidemiological Ophthalmology Classification. Results: The distribution of intraocular pressure (IOP) and vertical cup-to-disc ratio (VCDR) was obtained from the right eye of the 2532 subjects with normal suprathreshold visual fields. WebJun 15, 2005 · Here are the best ways to go about examining various aspects of the disc: • Cup-to-disc ratio and disc rim integrity. While glaucoma optic-nerve evaluation has … shannon sharpe basketball fight