WebOn examination he refracted to 20/20 OU and got 10/14 American Optical color plates correct in either eye, largely missing left-sided characters. He had a 0.6 log unit afferent pupillary defect, and a dense (no HM) congruous left homonymous hemianopsia sparing the central 2 degrees. ""Bow-tie"" atrophy was present. WebOct 1, 2007 · Case report: A 42-year-old man was diagnosed with band or "bow tie" optic atrophy with a right homonymous hemianopia. Computerized tomography (CT) revealed a calcified lesion in the left hippocampus.
Bowtie optic atrophy Download Scientific Diagram - ResearchGate
WebAbstract. Band or “bow tie” optic atrophy is characterized by well-described ophthalmoscopic findings in the optic nerve and nerve liber layer and homonymous hemianopia. It is typically associated with compressive lesions of the pregeniculate post-chiasmal visual pathway or, less commonly, congenital malformations affecting the ... WebBecause the fibers involved are primary neurons in the visual pathway (ie, retinal ganglion cells), the homonymous hemianopic visual field loss is accompanied by other findings that make up the optic tract syndrome: “Bow-tie” optic atrophy. Because the optic tract involves crossed fibers from the contralateral eye, the corresponding atrophy ... marvel vivian
Optic Atrophy: Causes, Symptoms, Diagnosis & Outcome - Cleveland Clinic
WebMar 15, 2024 · Lesion groups 1 and 2 result in a bowtie pattern of optic atrophy ( Fig. 3.22b) of the right optic nerve. Lesion group 3 results in mostly temporal atrophy of the left optic nerve ( Fig. 3.22b). A RAPD is … WebOptic atrophy. Tumors that compress the optic tract produce optic atrophy as axons die back, but this will not occur with lesions posterior to the lateral geniculate nucleus. The optic atrophy will occur temporally in the eye ipsilateral to the tract lesion, and a bow-tie configuration in the contralateral eye (Savino et al 1978). 2 WebBand or "bow tie" optic atrophy is characterized by well-described ophthalmoscopic findings in the optic nerve and nerve fiber layer and homonymous hemianopia. It is typically associated with compressive lesions of the pregeniculate postchiasmal visual pathway or, less commonly, congenital malformations affecting the postgeniculate radiations ... data speed monitor