13 Visual Impairment

Question 1

What is visual impairment?

Answer 1

inability to see clearly, you can still have poor vision but not fulfill the criteria for being registered

Question 2

What is visual aquity?

Answer 2

the ability of the eye to see detail

Question 3

How is distance aquity tested?

Answer 3

the Snellen chart at 6m, rows of letters decreasin in size labelled 60, 36, 24, 18, 12, 9, 6, 5…

Question 4

How can you get visual impairment registration in the UK?

Answer 4

have to referred by an ophtalmologist, depending on how far down you see on the Snellen chart and your field of vision

Question 5

What are the categories of visual impairment?

Answer 5

Severely Sight Impaired (blind)
Sight Impaired

this is based on the vision in the better seeing eye

Question 6

What is the registration of visual impairment in the UK called?

Answer 6

Certificate of Vision Impairment (CVI)

Question 7

What might cause moderate field contraction?

Answer 7

medial opacities

aphakia

Question 8

What might cause a marked field defect?

Answer 8

homonymous hemianopia

Question 9

over 2 million people have sight loss in the uk, which groups does this include?

Answer 9

registered SSI / SI
those who are not registered
people awaiting treatment to improve sight
people who could have better sight with a better prescription

Question 10

What is the 1 main cause of sight loss?

Answer 10

uncorrected refracted error

Question 11

What age are people with SSI / SI?

Answer 11

mostly over 75

Question 12

Who is at risk globally of visual impairment?

Answer 12

those older than 50

females

Question 13

How many children worldwide are irreversibly blind?

Answer 13

1.4 million

Question 14

What is trachoma caused by?

Answer 14

infection with bacterium chlamydia trachomatis

Question 15

What is Onchoccerciasis caused by?

Answer 15

parasite onchocerca volvulus, transmitted by blackfly bites

Question 16

How much does eye health cost the UK annually?

Answer 16

£26.5 billion

Question 17

Who is at more risk of diabetic eye disease?

Answer 17

black African, Caribbean, and South Asian people

Question 18

Who is at more risk of glaucoma?

Answer 18

Black African, and Carribbean

Question 19

How do the visually impaired have a lower wellbeing?

Answer 19

over 40% of those attending low vision clinics suffer from symptoms of clincial depression

Question 20

How do the visually impaired have to rely on support?

Answer 20

Only 1/4 registered SSI / SI of working age were in employment

Question 21

How do the visually impaired have difficulty with travel and transport?

Answer 21

2/3 of people of working age had collided with an obstacle on the pavement in the last 3 months

Question 22

How do the visually impaired struggle with poor access to information?

Answer 22

9/10 SSI / SI said information on medication / food packaging was difficult or impossible to read

Question 23

What government benefits are available to those with visual impairments?

Answer 23

disability living allowance (DLA) or personal independence payment (PIP)

tax allowance
reduced fees on public transport
parking concessions

Question 24

What is the ECLO?

Answer 24

Eye Clinic Liaison Officer

they offer support for the recently diagnosed