WebThe bow tie pattern makes sense when you break it down. When you think about it, which parts of the retina take care of the temporal field? Nasal retina of course (and therefore, nasal optic nerve head as well). However, don't forget that the macular ganglion cells NASAL to the fovea (yet still TEMPORAL to the optic nerve head), also see ... 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
Kathleen B. Digre, MD Professor Neurology, Ophthlamology
WebAug 14, 2024 · This so-called bow-tie or band optic atrophy is also seen in the eye contralateral to a unilateral optic tract lesion [3, 32, 33]. Such a lesion also causes superior and inferior pallor of the ipsilateral optic disc because it involves the temporal retinal ganglion cells from that eye (see chapter “Retrochiasmal Disorders”). WebApr 1, 2024 · Figure 2 A.Glaucomatous disc changes B. Temporal pallor C. Sectoral pallor D. Bow tie optic atrophy. Clinical approach. It is quite common for ophthalmologists to recognize pale optic disc on routine … golf car repair shop
Frontiers Simplifying the diagnosis of optic tract lesions
WebThe optic nerve is composed of nerve fibers that transmit impulses to the brain. In the case of optic atrophy, something is interfering with the optic nerve's ability to transmit these … 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 ... WebTemporal or bow-tie atrophy of the optic disc on examination; If you suspect that a patient has a nonfunctioning pituitary adenoma, the following steps are warranted: visual acuity … headway app refund