Ischemic Optic Neuropathy | Ophthalmology | Video Lectures | V-Learning | sqadia.com скачать в хорошем качестве

Ischemic Optic Neuropathy | Ophthalmology | Video Lectures | V-Learning | sqadia.com

Ischemic optic neuropathy is a medical condition that is caused by a lack of blood flow to the optic nerve of the eye. It can result in damage to the optic nerve and can lead to the loss of vision. It has two main types arteritic and non-arteritic ION. Each has posterior and anterior types. The optic neuropathy is mainly owing to the involvement of posterior ciliary artery circulation. ▬ 📌 AION Initially in this section, the blood supply of the optic nerve is mentioned. The types of ischemic optic neuropathy include anterior and posterior ischemic optic neuropathy. These involve posterior ciliary artery circulation. It presents an afferent pupillary defect. The types of ischemic neuropathy are discussed. These include arteritic and non-arteritic forms. The pathogenesis shows head infarction of the optic nerve head. ▬ 📌 Non-Arteritic AION The non-arteritic ION includes two types viz anterior ION with swollen optic disc and posterior ION with normal optic disc. It causes painless monocular loss of VA. The investigations are done by lipid profiling, blood pressure, and cardiac evaluation along with ESR and MRI. Also, fluorescein fundus angiography (FFA) is explained. It can be treated via brimonidine or surgically by transversal optic neurotomy, vitrectomy, or decompression trial. ▬ 📌 Arteritic AION Arteric AION is caused by giant cell arteries. The giant-cell arteritis (GCA) is explicated which is the systemic vasculitis affecting arteries. It presents with the ocular ischemic syndrome, chalky white edematous disc, or PION. The investigations can be done via CBC, C-reactive protein, or temporal artery biopsy. However, it can be treated using steroids, anti-platelet therapy, or immunosuppression. ▬ 🎬 5500+ sqadia.com Medical Videos ▬▬▬▬▬▬▬▬▬▬ 👩🏻‍⚕️ Accessible Medical Student Education 24/7/365 💡 Simplifying Medical Learning 💪 Study Hard, Dream Big, Achieve More