Visual Loss Flashcards
List some causes of sudden visual loss.
Vascular aetiology e.g occlusion Vitreous haemorrhage Retinal Detachment ARMD Wet Closed Angle Glaucoma
List some causes of sudden visual loss.
Vascular aetiology e.g occlusion Vitreous haemorrhage Retinal Detachment ARMD Wet Closed Angle Glaucoma
List some causes of sudden visual loss.
Vascular aetiology e.g occlusion Vitreous haemorrhage Retinal Detachment ARMD Wet Closed Angle Glaucoma
List some causes of sudden visual loss.
Vascular aetiology e.g occlusion Vitreous haemorrhage Retinal Detachment ARMD Wet Closed Angle Glaucoma
List some causes of sudden visual loss.
Vascular aetiology e.g occlusion Vitreous haemorrhage Retinal Detachment ARMD Wet Closed Angle Glaucoma
List some causes of sudden visual loss.
Vascular aetiology e.g occlusion Vitreous haemorrhage Retinal Detachment ARMD Wet Closed Angle Glaucoma
List some causes of sudden visual loss.
Vascular aetiology e.g occlusion Vitreous haemorrhage Retinal Detachment ARMD Wet Closed Angle Glaucoma
List some causes of sudden visual loss.
Vascular aetiology e.g occlusion Vitreous haemorrhage Retinal Detachment ARMD Wet Closed Angle Glaucoma
List some causes of sudden visual loss.
Vascular aetiology e.g occlusion Vitreous haemorrhage Retinal Detachment ARMD Wet Closed Angle Glaucoma
List some causes of sudden visual loss.
Vascular aetiology e.g occlusion Vitreous haemorrhage Retinal Detachment ARMD Wet Closed Angle Glaucoma
List some causes of sudden visual loss.
Vascular aetiology e.g occlusion Vitreous haemorrhage Retinal Detachment ARMD Wet Closed Angle Glaucoma
List some causes of sudden visual loss.
Vascular aetiology e.g occlusion Vitreous haemorrhage Retinal Detachment ARMD Wet Closed Angle Glaucoma
List some causes of sudden visual loss.
Vascular aetiology e.g occlusion Vitreous haemorrhage Retinal Detachment ARMD Wet Closed Angle Glaucoma
List some causes of sudden visual loss.
Vascular aetiology e.g occlusion Vitreous haemorrhage Retinal Detachment ARMD Wet Closed Angle Glaucoma
List some causes of sudden visual loss.
Vascular aetiology e.g occlusion Vitreous haemorrhage Retinal Detachment ARMD Wet Closed Angle Glaucoma
List some causes of sudden visual loss.
Vascular aetiology e.g occlusion Vitreous haemorrhage Retinal Detachment ARMD Wet Closed Angle Glaucoma
What does a Central Retinal Artery Occlusion look like on Fundoscopy?
Pale oedematous retina
Small thread like vessels
Cherry red mark on the macula
How does someone with a Central Retinal Artery Occlusion present?
Sudden painless unilateral loss of vision
What are the causes of a Central Retinal Artery Occlusion?
Carotid Artery Disease
Emboli from the heart (unusual)
What is Amaurosis Fugax?
Transient Central Retinal Artery Occlusion
How does someone present with Amaurosis Fugax?
Transient <5 min painless unilateral vision loss
“curtain going down”
What would be found on examination of someone with Amaurosis Fugax?
No abnormal findings
What should be done with someone who presents with Amaurosis Fugax?
Refer onto the stroke clinic
What are the three causes for Central Retinal Vein Occlusion?
Endothelial Damage - Diabetes
Abnormal Blood Flow - Hypertension
Hyper coagulability - Cancer
How does someone present with Central Retinal Vein Occlusion?
Sudden painless unilateral vision loss.
In Central Retinal Vein Occlusion what can be seen on fundoscopy?
Retinal haemorrhage
Dilated tortuous veins
Disc swelling
Macular swelling
How can you differentiate between a Central Retinal Vein or Artery Occlusion?
There is no difference clinically the only way to do so is via fundoscopy.
What does a Central Retinal Artery Occlusion look like on Fundoscopy?
Pale oedematous retina
Small thread like vessels
Cherry red mark on the macula
How does someone with a Central Retinal Artery Occlusion present?
Sudden painless unilateral loss of vision
What are the causes of a Central Retinal Artery Occlusion?
Carotid Artery Disease
Emboli from the heart (unusual)
What is Amaurosis Fugax?
Transient Central Retinal Artery Occlusion
How does someone present with Amaurosis Fugax?
Transient <5 min painless unilateral vision loss
“curtain going down”
What would be found on examination of someone with Amaurosis Fugax?
No abnormal findings
What should be done with someone who presents with Amaurosis Fugax?
Refer onto the stroke clinic
What are the three causes for Central Retinal Vein Occlusion?
Endothelial Damage - Diabetes
Abnormal Blood Flow - Hypertension
Hyper coagulability - Cancer
How does someone present with Central Retinal Vein Occlusion?
Sudden painless unilateral vision loss.
In Central Retinal Vein Occlusion what can be seen on fundoscopy?
Retinal haemorrhage
Dilated tortuous veins
Disc swelling
Macular swelling
How can you differentiate between a Central Retinal Vein or Artery Occlusion?
There is no difference clinically the only way to do so is via fundoscopy.
What happens in Ischaemic Optic Neuropathy
Posterior Ciliary Arteries become occluded
-infarction of the head of the optic nerve
How does someone present with Ischaemic Optic Neuropathy?
Sudden often painless unilateral vision loss.
In someone with Ischaemic Optic Neuropathy what can be seen on fundoscopy?
Swollen optic disc
Normal vessels
What does a Central Retinal Artery Occlusion look like on Fundoscopy?
Pale oedematous retina
Small thread like vessels
Cherry red mark on the macula
How does someone with a Central Retinal Artery Occlusion present?
Sudden painless unilateral loss of vision
What are the causes of a Central Retinal Artery Occlusion?
Carotid Artery Disease
Emboli from the heart (unusual)
What is Amaurosis Fugax?
Transient Central Retinal Artery Occlusion
How does someone present with Amaurosis Fugax?
Transient <5 min painless unilateral vision loss
“curtain going down”
What would be found on examination of someone with Amaurosis Fugax?
No abnormal findings
What should be done with someone who presents with Amaurosis Fugax?
Refer onto the stroke clinic
What are the three causes for Central Retinal Vein Occlusion?
Endothelial Damage - Diabetes
Abnormal Blood Flow - Hypertension
Hyper coagulability - Cancer
How does someone present with Central Retinal Vein Occlusion?
Sudden painless unilateral vision loss.
In Central Retinal Vein Occlusion what can be seen on fundoscopy?
Retinal haemorrhage
Dilated tortuous veins
Disc swelling
Macular swelling
How can you differentiate between a Central Retinal Vein or Artery Occlusion?
There is no difference clinically the only way to do so is via fundoscopy.
What happens in Ischaemic Optic Neuropathy
Posterior Ciliary Arteries become occluded
-infarction of the head of the optic nerve
How does someone present with Ischaemic Optic Neuropathy?
Sudden often painless unilateral vision loss.
In someone with Ischaemic Optic Neuropathy what can be seen on fundoscopy?
Swollen optic disc
Normal vessels
Ischaemic Optic Neuritis is associated with which condition, and if present how will they present clinically?
Temporal Arteritis
Headache
Temporal Arteries distended
Tender scalp
How can Vitreous Haemorrhage be broken down?
Due to Abnormal or Normal Vessels.
Give two causes of abnormal vein growth that increase the risk of Vitreous haemorrhage.
Retinal Ischaemia due to diabetes
Retinal Vein Occlusion
Both increase production of VEGF
What does a Central Retinal Artery Occlusion look like on Fundoscopy?
Pale oedematous retina
Small thread like vessels
Cherry red mark on the macula
How does someone with a Central Retinal Artery Occlusion present?
Sudden painless unilateral loss of vision
What are the causes of a Central Retinal Artery Occlusion?
Carotid Artery Disease
Emboli from the heart (unusual)
What is Amaurosis Fugax?
Transient Central Retinal Artery Occlusion
How does someone present with Amaurosis Fugax?
Transient <5 min painless unilateral vision loss
“curtain going down”
What would be found on examination of someone with Amaurosis Fugax?
No abnormal findings
What should be done with someone who presents with Amaurosis Fugax?
Refer onto the stroke clinic
What are the three causes for Central Retinal Vein Occlusion?
Endothelial Damage - Diabetes
Abnormal Blood Flow - Hypertension
Hyper coagulability - Cancer
How does someone present with Central Retinal Vein Occlusion?
Sudden painless unilateral vision loss.
In Central Retinal Vein Occlusion what can be seen on fundoscopy?
Retinal haemorrhage
Dilated tortuous veins
Disc swelling
Macular swelling
How can you differentiate between a Central Retinal Vein or Artery Occlusion?
There is no difference clinically the only way to do so is via fundoscopy.
What happens in Ischaemic Optic Neuropathy
Posterior Ciliary Arteries become occluded
-infarction of the head of the optic nerve
How does someone present with Ischaemic Optic Neuropathy?
Sudden often painless unilateral vision loss.
In someone with Ischaemic Optic Neuropathy what can be seen on fundoscopy?
Swollen optic disc
Normal vessels
Ischaemic Optic Neuritis is associated with which condition, and if present how will they present clinically?
Temporal Arteritis
Headache
Temporal Arteries distended
Tender scalp
How can Vitreous Haemorrhage be broken down?
Due to Abnormal or Normal Vessels.
Give two causes of abnormal vein growth that increase the risk of Vitreous haemorrhage.
Retinal Ischaemia due to diabetes
Retinal Vein Occlusion
Both increase production of VEGF
What does a Central Retinal Artery Occlusion look like on Fundoscopy?
Pale oedematous retina
Small thread like vessels
Cherry red mark on the macula
How does someone with a Central Retinal Artery Occlusion present?
Sudden painless unilateral loss of vision
What are the causes of a Central Retinal Artery Occlusion?
Carotid Artery Disease
Emboli from the heart (unusual)
What is Amaurosis Fugax?
Transient Central Retinal Artery Occlusion
How does someone present with Amaurosis Fugax?
Transient <5 min painless unilateral vision loss
“curtain going down”
What would be found on examination of someone with Amaurosis Fugax?
No abnormal findings
What should be done with someone who presents with Amaurosis Fugax?
Refer onto the stroke clinic
What are the three causes for Central Retinal Vein Occlusion?
Endothelial Damage - Diabetes
Abnormal Blood Flow - Hypertension
Hyper coagulability - Cancer
How does someone present with Central Retinal Vein Occlusion?
Sudden painless unilateral vision loss.
In Central Retinal Vein Occlusion what can be seen on fundoscopy?
Retinal haemorrhage
Dilated tortuous veins
Disc swelling
Macular swelling
How can you differentiate between a Central Retinal Vein or Artery Occlusion?
There is no difference clinically the only way to do so is via fundoscopy.
What happens in Ischaemic Optic Neuropathy
Posterior Ciliary Arteries become occluded
-infarction of the head of the optic nerve
How does someone present with Ischaemic Optic Neuropathy?
Sudden often painless unilateral vision loss.
In someone with Ischaemic Optic Neuropathy what can be seen on fundoscopy?
Swollen optic disc
Normal vessels
Ischaemic Optic Neuritis is associated with which condition, and if present how will they present clinically?
Temporal Arteritis
Headache
Temporal Arteries distended
Tender scalp
How can Vitreous Haemorrhage be broken down?
Due to Abnormal or Normal Vessels.
Give two causes of abnormal vein growth that increase the risk of Vitreous haemorrhage.
Retinal Ischaemia due to diabetes
Retinal Vein Occlusion
Both increase production of VEGF
What does a Central Retinal Artery Occlusion look like on Fundoscopy?
Pale oedematous retina
Small thread like vessels
Cherry red mark on the macula
How does someone with a Central Retinal Artery Occlusion present?
Sudden painless unilateral loss of vision
What are the causes of a Central Retinal Artery Occlusion?
Carotid Artery Disease
Emboli from the heart (unusual)
What is Amaurosis Fugax?
Transient Central Retinal Artery Occlusion
How does someone present with Amaurosis Fugax?
Transient <5 min painless unilateral vision loss
“curtain going down”
What would be found on examination of someone with Amaurosis Fugax?
No abnormal findings
What should be done with someone who presents with Amaurosis Fugax?
Refer onto the stroke clinic
What are the three causes for Central Retinal Vein Occlusion?
Endothelial Damage - Diabetes
Abnormal Blood Flow - Hypertension
Hyper coagulability - Cancer
How does someone present with Central Retinal Vein Occlusion?
Sudden painless unilateral vision loss.
In Central Retinal Vein Occlusion what can be seen on fundoscopy?
Retinal haemorrhage
Dilated tortuous veins
Disc swelling
Macular swelling
How can you differentiate between a Central Retinal Vein or Artery Occlusion?
There is no difference clinically the only way to do so is via fundoscopy.
What happens in Ischaemic Optic Neuropathy
Posterior Ciliary Arteries become occluded
-infarction of the head of the optic nerve
How does someone present with Ischaemic Optic Neuropathy?
Sudden often painless unilateral vision loss.
In someone with Ischaemic Optic Neuropathy what can be seen on fundoscopy?
Swollen optic disc
Normal vessels
Ischaemic Optic Neuritis is associated with which condition, and if present how will they present clinically?
Temporal Arteritis
Headache
Temporal Arteries distended
Tender scalp
How can Vitreous Haemorrhage be broken down?
Due to Abnormal or Normal Vessels.
Give two causes of abnormal vein growth that increase the risk of Vitreous haemorrhage.
Retinal Ischaemia due to diabetes
Retinal Vein Occlusion
Both increase production of VEGF
Why do these abnormal vessels increase the risk of vitreous haemorrhage?
As they are poorly formed and often leaky.
Give a cause vitreous haemorrhage involving normal veins.
Normal veins bridging a retinal tear.
How does someone with Vitreous Haemorrhage present?
Loss of vision
Floaters
Loss of red reflex
Haemorrhage
How does someone with retinal detachment present?
Painless loss of vision Sudden onset of floaters and flashes May have a RAPD Curtain descending History of head injury
Why does someone with retinal detachment present with flashing lights?
As the sensory retina is torn from the pigmented epithelium the pigment is released.
What are some risk factors for developing Age Related Macular Degeneration?
Increased age
Smoking
+ve family history
Poor Nutrition
What is the main difference between wet and dry macular degeneration ?
Wet is fast
Dry is gradual
How does someone with Wet Macular Degeneration present?
Rapid central vision loss
Distortion
Haemorrhage
Exudate
What does a Central Retinal Artery Occlusion look like on Fundoscopy?
Pale oedematous retina
Small thread like vessels
Cherry red mark on the macula
How does someone with a Central Retinal Artery Occlusion present?
Sudden painless unilateral loss of vision
What are the causes of a Central Retinal Artery Occlusion?
Carotid Artery Disease
Emboli from the heart (unusual)
What is Amaurosis Fugax?
Transient Central Retinal Artery Occlusion
How does someone present with Amaurosis Fugax?
Transient <5 min painless unilateral vision loss
“curtain going down”
What would be found on examination of someone with Amaurosis Fugax?
No abnormal findings
What should be done with someone who presents with Amaurosis Fugax?
Refer onto the stroke clinic
What are the three causes for Central Retinal Vein Occlusion?
Endothelial Damage - Diabetes
Abnormal Blood Flow - Hypertension
Hyper coagulability - Cancer
How does someone present with Central Retinal Vein Occlusion?
Sudden painless unilateral vision loss.
In Central Retinal Vein Occlusion what can be seen on fundoscopy?
Retinal haemorrhage
Dilated tortuous veins
Disc swelling
Macular swelling
How can you differentiate between a Central Retinal Vein or Artery Occlusion?
There is no difference clinically the only way to do so is via fundoscopy.
What happens in Ischaemic Optic Neuropathy
Posterior Ciliary Arteries become occluded
-infarction of the head of the optic nerve
How does someone present with Ischaemic Optic Neuropathy?
Sudden often painless unilateral vision loss.
In someone with Ischaemic Optic Neuropathy what can be seen on fundoscopy?
Swollen optic disc
Normal vessels
Ischaemic Optic Neuritis is associated with which condition, and if present how will they present clinically?
Temporal Arteritis
Headache
Temporal Arteries distended
Tender scalp
How can Vitreous Haemorrhage be broken down?
Due to Abnormal or Normal Vessels.
Give two causes of abnormal vein growth that increase the risk of Vitreous haemorrhage.
Retinal Ischaemia due to diabetes
Retinal Vein Occlusion
Both increase production of VEGF
Why do these abnormal vessels increase the risk of vitreous haemorrhage?
As they are poorly formed and often leaky.
Give a cause vitreous haemorrhage involving normal veins.
Normal veins bridging a retinal tear.
How does someone with Vitreous Haemorrhage present?
Loss of vision
Floaters
Loss of red reflex
Haemorrhage
How does someone with retinal detachment present?
Painless loss of vision Sudden onset of floaters and flashes May have a RAPD Curtain descending History of head injury
Why does someone with retinal detachment present with flashing lights?
As the sensory retina is torn from the pigmented epithelium the pigment is released.
What are some risk factors for developing Age Related Macular Degeneration?
Increased age
Smoking
+ve family history
Poor Nutrition
What is the main difference between wet and dry macular degeneration ?
Wet is fast
Dry is gradual
How does someone with Wet Macular Degeneration present?
Rapid central vision loss
Distortion
Haemorrhage
Exudate
What does a Central Retinal Artery Occlusion look like on Fundoscopy?
Pale oedematous retina
Small thread like vessels
Cherry red mark on the macula
How does someone with a Central Retinal Artery Occlusion present?
Sudden painless unilateral loss of vision
What are the causes of a Central Retinal Artery Occlusion?
Carotid Artery Disease
Emboli from the heart (unusual)
What is Amaurosis Fugax?
Transient Central Retinal Artery Occlusion
How does someone present with Amaurosis Fugax?
Transient <5 min painless unilateral vision loss
“curtain going down”
What would be found on examination of someone with Amaurosis Fugax?
No abnormal findings