13 - Opth - Trauma - Penetration trauma + chemical injury Flashcards Preview

CP2 > 13 - Opth - Trauma - Penetration trauma + chemical injury > Flashcards

Flashcards in 13 - Opth - Trauma - Penetration trauma + chemical injury Deck (11):
1

PT -do what urgently

refer

2

PT - when to suspect this

history of tool/metal work

3

PT - Signs of full thickness penetration - 7

Hx (sharp/high velocity injury)
distorted globe
subconjunctival haemorrhage
distorted iris/pupil
iris prolapse
hyphaema (blood in ant chamber)
Seidels sign

4

PT - What is seidels sign

clear streak of aqueous in flourescein-stained area

5

PT - What not to do

DO NOT touch, manipulate or pad the eye - immediate surgery required

6

PT - serious risk of?

endophthalmitis - local and systemic AB's

7

Chemical injury - which are more serious and why

alkali more serious - risk of penetrating injury
-acids coagulate protein and show slower penetration

8

CI - Signs of chemical injury

redness, pain, blurring, photophobia
cloudy cornea

9

CI - What to do immediately

irrigate eyes - local may be needed first, use clean water/normal saline, before Hx or exam

10

CI - what to check regularly

pH using litmus paper - both for comparison

11

CI - complications of chemical injury

corneal scarring
opacification
lid damage

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