Visual Field Defects and Optic Nerve Pathway | Homonymous Hemianopia Bitemporal Hemianopia NEW 2020

Learn the Optic Nerve Pathway and the Visual Field Defects that occur due to lesions in different parts of the Optic Nerve Pathway, including Homonymous Hemianopia, Bitemporal Hemianopia, Quadrantanopia, Macular Sparing and Macular Degeneration. What is the difference between the Temporal vs Nasal Retina? What defects are there in the visual fields if we have: optic nerve lesions, optic chiasm lesions, optic tract lesions or optic radiation lesions? What is macular sparing? What happens in the lateral geniculate nucleus? What is anopia?

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Video Timestamps:
0:00 Introduction
0:24 Optic Nerve Pathway Anatomy / Optic Chiasm / Optic Tract / Lateral Geniculate Nucleus / Optic Radiation
1:33 Temporal vs Nasal Retina
3:10 Optic Nerve Lesions - Anopia
3:32 Optic Chiasm Lesions - Bitemporal Hemianopia
3:56 Optic Tract Lesions - Homonymous Hemianopia
4:30 Optic Radiation Lesions - Quadrantanopia
5:04 What is the Macula?
5:32 Visual Cortex Lesions - Macular Sparing
6:23 Macular Degeneration

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Other Questions answered and video tags:
Quadrantanopia
Hemianopia
Visual Field Defects
Optic Nerve Lesions
Causes of Homonymous Hemianopia
Causes of Bitemporal Hemianopia
Lesions in visual pathway

Please remember this video is meant for educational purposes is not intended to be a guide to diagnose or to treat. Please consult a healthcare professional for medical advice.

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