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Flashcards in sudden visual loss Deck (28):
1

what is retinal detachment?

neurosensory layer of retina detaches from the pigment epithelum
most preceded y posterior vitreous detachment causing traction on retin and detachment as liquid is underneath
there is irreversible visual loss

2

rf FOR retinal detachment

fhx
myopia
history of previous
age

3

symptoms and signs

flashes
floaters
visual field loss
macula detachment would show reduced acuity
altered red reflex
reduced visual fields and RAPD RELX

4

anagement

laser photocoagulation

5

what is posterior vitreous detachment

detachment of the posterior hyoid face from of vitreous body from eurosensory retina

6

key feasture

most common cause of flashes and floaters
black specks
ocular flashes
PAINLESS

7

rf

age
short sighted
family history
uvetis
trauma
50 -70th decate
previous eye surgery

8

key sign

thickened posterior surface as pulled away -Weiss ring

9

management

not needed unless retinal tear

10

what is vitreous haemorrhage
who causes

blood leaks into vitrous uour into eye diabetes most common cause
eye trauma
60 plus

bleeding from new blood vessels
retinal tear and trauma

11

symptoms

hazy vision or visual loss
red tintint
floaters haze shadows cobwebs

12

management

laser photocogulatin and anti vegf

13

what is macular degeneration

degeneration of the macula
can cause changes to acuity
divided into wet and dry

14

what is seen in dry

drusen- yellow products - loss of photoreceptors
slow progression
atrophy of retinal pigment
eithleium
less dramatic

15

wet

new BV formation and bleed
loss of vision
dramatic and can be sudden
scarring white regins
fluid accomutaton secondary to new vessel formation

16

rf

alcohol
smoking
poor dietage

17

signs and symptoms

cant read fne print
difficulity econgising faces
pre detail distortion
blurring
scotoma central vision
altered amsler grid reading
funscoopy- drusen (in dry) and white scarrijng haeemorrrage (in wt)

18

management

prevent and manage through lifestyle no cure
wet - anti vegf, refer within 2 weeks

19

choridial melanoma
from what

pre-exisiting meloncyte nevi

20

symptoms

scotoma
blurred vision
painless and progressive fisual field loss
SEVEREPAIN
flashes and flotates
loss of acuite and fields
proptosis

21

central retinal artery occlusion

emergency
stroke equivalent in eye
due to athesclerosis
in young suspect protein s or c defiecency or ati thrombin III deficiency

22

sympptoms

sudden
painless unilateral visual loss history of amorax fungunax ocular TTIA
PALE RETINA
afferent reflex

23

management

remove fluid
aspirin
anti coagulttion
carotid endectodomy
tPA

24

central retinal vein occlusion

thormi or external compression of central cein

25

signs and symptoms

haemoarage
cotton wool spts
macula odema
por vsion
increased iop

26

rf

age diabetes hypertension smoking obesity coagulopaties

27

management

anti VEGF

28

third most common cause of blindess

irreviesble macular degeneration