WebJul 15, 2024 · The presence of an SVP viewed upon direct ophthalmoscopy may suggest that an elevated disc is not secondary to increased intracranial pressure. Clinicians should view several rhythmic beats of a vein, as eye movement can occasionally mimic the appearance of a non-sustained pulse. WebVisible optic disc drusen appear as refractile, whitish yellow, rounded crystalline deposits embedded within the optic nerve head. Buried optic disc drusen are harder to visualize and the optic disc may have a variable appearance ranging from normal to pseudopapilledematous.

What is a typical optic nerve head? - PubMed

WebHis medical history was unremarkable. Visual acuity was 20/20 OD and counting fingers at 1.2 m (4 ft) in the left eye. On dilation of the pupil, a discrete, elevated, reddish mass obscuring the optic nerve head was … WebThe optic nerve sends visual information from your eye to your brain and is vital for good vision. Damage to the optic nerve is often related to high pressure in your eye. But glaucoma can happen even with normal eye … how to lay asphalt shingles on roof

Ultrasound in Neuro-Ophthalmology - EyeWiki

WebThe differential diagnosis of swollen optic nerves differs according to whether the swelling is unilateral or bilateral, or whether visual function is normal or affected. Patients with a … WebThe transformation of optic nerve melanocytoma to malignant melanoma has been documented in 1 to 2 percent of cases. 5 If there is progressive growth or extensive involvement of the optic disc along with vision loss, then malignant transformation should be considered, although 10 to 15 percent of melanocytomas will have subtle enlargement … WebMar 9, 2024 · Optic Nerve Hamartomas: Astrocytic hamartomas can affect the optic nerve directly but are generally benign and do not require treatment. These lesions, when on the surface of the optic nerve, are characterized by an elevated optic nerve head with the appearance of obscured borders. how to lay a stair runner