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Oogheelkunde 1: Vasculair van Sander Beers

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Samenvatting van HC 1 van Oogheelkunde, met de leerdoelen uitgewerkt.

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Oogheelkunde
1: Vasculair


Veneus:

- Veneuze druk
- Dunne vaatwand
- “Geen” pulsaties
- Lage flow
- “Hemorragisch” infarct (trombose)

Arterieel:

- Bloeddruk
- Dikke vaatwand
- Pulsaties
- Grote flow
- “ischaemisch” infarct

Infarct: geblokkeerde bloedvoorziening -> ischemie en lekkage in weefsel -> weefseldood


Uitleggen hoe de retinale bloedcirculatie loopt

Arterieel:
Hart → carotis communis → carotis interna → a. ophtalmica
→ splitst zich in a. centralis retinae en de ciliaris arteriën

Aa. ciliaris
- Voorziet de choroidea en de papil van bloed
- Papilinfarct wanneer er occlusie plaatsvindt
- Choroidaal infarct is zeldzaam

A. centralis retinae
- Voorziet de retinale arteriën van bloed
- Retina infarct wanneer er occlusie plaatsvindt

Cilioretinale arterie:
- Vindt zijn oorsprong in de choroidale circulatie
- Voorziet de macula van bloed
- Komt voor bij 10-30% van de populatie
- Is voordelig want bij een retina-infarct blijft de centrale gezichtsscherpte behouden omdat
deze nog wel werken
Veneus:
Bloed wordt verzamelt en gaat het oog uit via de vena centralis retinae en vena vorticosa.

Daarna verzamelt het bloed zich in de vena ophtalmica superior en inferior, en gaat naar de sinus
cavernosus → Vena jugularis → hart

, Beschrijven welk deel van het oog door welk gedeelte van de bloedvaten wordt verzorgd

A. ophtalmica:
- Voorziet alle weefsels in de orbita van bloed
- Spieren, oogzenuw, oog en orbitaweefsel


Funduscopie:

- Vaten: vaatpatroon, -kaliber, -kleur, -kruisingen
- Lekkage: bloedingen, exsudaten, maculaoedeem (CME)
- Ischaemie: collateralen, cotton wool spots, neovascularisatie

Choroidale vaten: Tortuositas vasorum:




Angiomatosis: CRVO:




= Breed vaatkaliber

Retinitis pigmentosa: CRAO:




= Smal vaatkaliber

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February 16, 2022
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Number of pages
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Written in
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Sander beers
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