🔶Advanced Glaucoma🔶
🔷Optic Disc Changes🔷
👁 YouTube.com/@VisualSystem
———
🟢 First, we will see a thinning of the neuroretinal rim (containing the axons of ganglion cells). This thinning of the neuroretinal rim reflects the loss of ganglion cells due to glaucomatous damage.
🟢 As glaucomatous damage progresses, the optic disc cup becomes larger and often deeper. As the neuroretinal rim thins from ganglion cell loss, the lamina cribrosa is exposed and its perforated surface can be clearly seen.
🟢 Pallor of the optic nerve is classically considered a change in glaucoma. The term pallor is likely to be misinterpreted to mean generalized pallor of the optic nerve. The pallor of glaucomatous optic nerve relates to the increased visibility of the lamina cribosa at optic disc, as compared to the coloured neuroretinal rim, that has been lost.
🟢 Bayonet sign:
👉 In a healthy disc, vessels pass over the sloping rim of the cup to reach the retina. This creates a mild kink or change in direction of the vessel. With loss of the neuroretinal rim, a vessel may pass into a recess below the rim before climbing on to its surface. This creates a double angulation (a z-shaped bend) which looks like a bayonet. Bayonet sign is a characteristic sign of advanced glaucoma.
———
👤 J.R. Fontenla, MD-PhD.
Medical Consultant in Ophthalmology
🏨 Hospital Clinic of Barcelona
👁 YouTube.com/@VisualSystem
Professor of Ophthalmology
🏛 University of Barcelona
📩 visus.formacion@gmail.com
🌍 Instagram: @visus.formacion
———
I hope you find this lesson helpful. If you do, please like and subscribe for more lessons like this one!
🟡 Subscribe: [ Ссылка ]
🟡 Be a member: [ Ссылка ]
———
**MEDICAL LEGAL DISCLAIMER**: Visus Formación en Oftalmología does not provide medical advice, and the information available on this channel does not offer a diagnosis or advice regarding treatment. Information presented in these lessons is for educational purposes ONLY, and information presented here is not to be used as an alternative to a healthcare professional’s diagnosis and treatment of any person/animal. Only a physician or other licensed healthcare professional are able to determine the requirement for medical assistance to be given to a patient. Please seek the advice of your physician or other licensed healthcare provider if you have any questions regarding a medical condition.

*IMAGE DISCLAIMER: The content (ex. images) used in this lesson are used in accordance with Fair Use laws and are intended for educational/teaching purposes only*
———
🟢 Check out some of our other lessons:
👉 Shorts Playlist: [ Ссылка ]
👉 English Content Playlist: [ Ссылка ]
👉 Channel Home Page: [ Ссылка ]
———

свернуть