Low Vision and Visual Rehabilitation

Question 1

Visual impairment

Answer 1

A person substantially/permanently handicapped by defect vision caused through congenital defect, injury or illness.
VA 3/60 - 6/60
or up to 6/24 w/ moderate field constriction or
VA 6/18 or > if severe field loss

Question 2

Severe visual impairment

Answer 2

So blind they can’t perform work for which sight is essential

Question 3

Causes impaired visual acuity - children (6)

Answer 3

Amblyopia 
Congenital cataract 
Albinism 
Bupthalmos/ congenital glaucoma 
Optic atrophy 
Retinopathy or prematurity

Question 4

Causes impaired visual acuity - adults (12)

Answer 4

Cataracts 
Diabetic retinopathy 
Retinal detachment 
Age-related macular degeneration 
POAG
Vitreous haemorrhage 
Optic neuropathy 
Optic neuritis 
Retinal aa/vv occlusion 
Posterior uveitis 
Corneal dystrophies 
Retinitis pigmentosa

Question 5

LogMAR

Answer 5

Used to measure visual acuity

Equal no’ letters per line which decreased in a logarithmic fashion

Question 6

Low vision devices for children

Answer 6

Bar magnifiers, dome magnifiers

Bifocal glasses with high adds for reading

Question 7

Low vision devices for adults

Answer 7

Hand magnifiers, stand magnifiers
Strong reading glasses
Binoculars/monoculars

Question 8

What is a LVI (letter of visual impairment)

Answer 8

Designed for optometrist/clinician outside hospital to provide info to council and implying responsibility of provision by social services

Question 9

What is an RVI

Answer 9

Referral of visual impairment

Allows social services to help

Question 10

What is a CVI - certificate of visual impairment

Answer 10

Issued by ophthalmologist
SS provision compulsory
Access to benefits
Must inform DVLA

Question 11

What is GOS18

Answer 11

Used by optometrists to relay info to GP + hospital eye serivces
Implies transfer of responsibility to GP