Visual loss Flashcards
1
Q
Criteria of VA for severe visual field loss?
A
3/60-6/60 or up to 6/24 with moderate field contraction
or
6/18 or better if severe visual field loss
2
Q
Criteria for severe visual impairment?
A
VA less than 3/60 or 3/60-6/60 with constricted visual fields
VA 6/60 to 6/24 with very constricted fields
3
Q
What would you do for a visual assessment?
A
aided and unaided distance visual assessment near vision retinoscopy subjective refraction unit magnification assessment
4
Q
ddx for Low vision in children?
A
congenital glaucoma: buphthalmos congenital cataracts (can't replace the lens- aphakia) diabetic retinopathy of the new born myopia albinism optic atrophy
5
Q
ddx for Low vision in adults?
A
diabetic retinopathy cataracts uveitis myopia mac degen retinitis pigmentosa corneal dystrophies
6
Q
presentation for retinitis pigmentosa?
A
poor vision in dull lighting and a reduction in visual fields but acuity may be fine
7
Q
ddx for Low vision in eldelrly?
A
inoperable cataracts
diabetic retinopathy/maculopathies
glaucoma
age related macular (dry and wet)
