gradual visual loss ,Acute Visual disturbance oncology Flashcards Preview

LS ophthamology > gradual visual loss ,Acute Visual disturbance oncology > Flashcards

Flashcards in gradual visual loss ,Acute Visual disturbance oncology Deck (14):
1

what is a cataract

clouding of the lens

2

signs and symptoms

gradual vision loss -spots on vision
clouding
haloes above lights
photophobia
not corrected by glasses

3

RF

age, diabetes, hypterensin, hypercholesteriama
FH poor diet
smoking
statin and prednisolone use
previous eye injury or surgery
alcohol

4

management

corrective surgery and removing lense
inserting intraocular implant

5

what is optic neuritis

inflammation of the optic nerve

6

symptoms and signs

impaired colour vision
reduced vision
eye pain
associated with MS
reduced pupillary light reaction
scotoma
flashes
fevever

7

ix

mr
tb cxr bloods

8

a drug causing it

metronidazole

9

meds

corticosteroids interferon beta

10

what is a stye

PAINFUL lump on eye can be internal (started from eyelid) or external (from base of eyelash )usually managed with heat compression
can cause entire eyelid to swell

11

what is a chalazon

similar to stye but not paintful sually
can cause blurred vision
tender to touch
manage in same way as stye

12

if someone has impaired direct pupillary refle which nerve

afferent otpic CN2

13

impaired consensual

efferent oculomotor nerve 3

14

difference between herpes simplex and zoster shingles

zoster in opthamalic region and looks very reptile like
whereas simples is very dotty