Optic Nerve Drusen Visual Field Loss - University of Iowa
2007年8月14日 · The optic disc can appear to have no "optic cup", resulting in the appearance of papilledema, which is a major part of the differential diagnosis (Davis 2003). As patients get older, particularly past the teenage years, the drusen become more visible. The drusen begin to protrude from the edge of the optic disc and cup, especially on the ...
EyeRounds.org: How to grade papilledema - University of Iowa
The self-test is divided into 2 sections. 1. Short-course "Primer: How to Grade Papilledema". 2. Post-course self-test cases to grade. Continue. Grading and recognition of the features of papilledema have clinical importance for diagnosis, differentiating papilledema from pseudopapilledema and other causes of optic disc edema, and for ...
Atlas Entry - Optic Disc Drusen - University of Iowa
The optic discs have a "lumpy bumpy" appearance with ill-defined margins suggesting optic disc drusen. The drusen appear as white-yellow excrescences that have joined together to form a "rocky candy" conglomerate (most marked in the left eye). Marked arteriolar attenuation secondary to retinitis pigmentosa is also evident in these photographs.
Atlas Entry - Normal fundus - adult - University of Iowa
This is a color fundus photograph of a 35-year-old healthy patient. The media are clear, providing a crisp view of the fundus. The optic disc appears pink with sharp margins and a cup-to-disc ratio of approximately 0.35. The vasculature is normal in course and caliber. The striated sheen radiating outward from the disc is evidence of a healthy ...
Atlas Entry - Optociliary shunt vessels - University of Iowa
The differential diagnosis for acquired optociliary shunt vessels commonly includes central retinal vein occlusion, chronic glaucoma, chronic papilledema, or an optic nerve sheath meningioma. Optociliary shunt vessels can be differentiated from neovascularization of the disc by their large caliber and lack of leakage on fluorescein angiogram.
Optic disc pallor. COMS Grading - University of Iowa
2006年6月27日 · The COMS Grading Scheme: Graded Features. Optic disc pallor. The optic disc normally has a pinkish hue with a central yellowish depression. Optic disc pallor is a pale yellow discoloration that can be segmental or generalized. This determination is …
Primary Open Angle Glaucoma: From One Medical Student to …
2013年8月22日 · Clinical findings of POAG include an open iridocorneal angle, characteristic changes of the optic disc, and – if sufficient optic nerve damage has occurred - corresponding visual field loss. Elevated IOP is a common finding and is followed clinically because elevated IOP is the only modifiable risk factor in glaucoma.
Congenital tilting of the optic nerve with situs inversus
Tilting of the optic nerve can vary in severity and is commonly associated with myopia as the optic nerve enters the sclera obliquely. Often the patient is asymptomatic, but in some cases tilted discs can be associated with superotemporal visual field defects that do not respect the midline. [1,2] Enlarge Download. Enlarge Download.
Ischemic Optic Neuropathy - University of Iowa
A splinter hemorrhage at disc margin is common (Fig. 8). Optic disc edema starts to develop pallor about 2-3 weeks after the onset of NA-AION, and optic disc edema usually resolves spontaneously in about 2 months . There is a characteristic evolutionary pattern of optic disc edema in NA-AION, as discussed elsewhere .
Chapter 1. Glaucoma: Optic Nerve Disease - University of Iowa
Glaucoma is one type of optic neuropathy. It is a disease of the optic nerve, often caused by high intraocular pressure (IOP) resulting from poor drainage of fluid from the eye. There are various types of glaucoma but all share the common feature of optic nerve damage which causes irreversible vision loss.