Open Angle Glaucoma

Question 1

What is open angle glaucoma?

Answer 1

Chronic optic neuropathy associated with raised intraocular pressure

Question 2

What is the pathophysiology of open angle glaucoma?

Answer 2

Raised intra-ocular pressure leads to retinal ganglion cell death

Question 3

What are risk factors for open angle glaucoma?

Answer 3

Raised IOP
FHx
Increasing age
Black race 
HTN 
Myopia

Question 4

What are the symptoms of open angle glaucoma?

Answer 4

Mainly asymptomatic

Loss of peripheral vision

Question 5

What are the signs of open angle glaucoma?

Answer 5

Optic nerve damage (glaucomatous disc cupping)
Visual field loss
Raised IOP

Question 6

How is open angle glaucoma investigated?

Answer 6

Fundoscopy

Question 7

What is seen on fundoscopy in open angle glaucoma?

Answer 7

Optic disc cupping
Optic disc pallor
Bayonetting of vessels
Cup notching

Question 8

How can open angle glaucoma be screened for?

Answer 8

Advise patients >40y to have regular eye checks

Question 9

How is open angle glaucoma managed medically?

Answer 9

Topical prostaglandin analogue
Topical B blocker
Topical carbonic anhydrase inhibitor
Topical alpha agonist

Question 10

How can open angle glaucoma be managed surgically?

Answer 10

Trabeculectomy