Cataracts Flashcards
1
Q
why do cataracts lead to reduced visual acuity
A
reduced light entry
2
Q
how are congenital cataracts detected
A
absence of red light reflex
3
Q
list risk factors of cataracts
A
- age
- smoking
- alcohol
- diabetes
- steroids
- hypocalcaemia
4
Q
asymmetrical presentations of cataracts
A
- slow reduction in vision
- progressive blurring
- change of colours to brown/yellow
- starbursts
5
Q
key sign of cataract
A
loss of red reflex
6
Q
exam materials:
- cataracts cause
- glaucoma cause
- mac degeneration cause
A
- generalised reduction in visual acuity + starbursts around lights
- peripheral vision loss + halos around light
- central vision loss + crooked/wavy appearance to straight lines
7
Q
why might there still be poor acuity despite cataract surgery
A
other conditions masked by cataract
8
Q
inflammation of inner contents of eye caused by an infection as a post-cataract complication that can lead to loss of vision
A
endophthalmitis
