Opthalmology

Question 1

Risks for acanthamoeba keratitis

Answer 1

Fresh water swimming, showering with contacts in. Sleeping with contacts in.

Question 2

what does acanthamoeba look like

Answer 2

ring infiltrates
https://www.google.com/url?sa=i&url=https%3A%2F%2Fwww.mdpi.com%2F2077-0383%2F10%2F5%2F942&psig=AOvVaw3_Hchz6dcJfrDv7P6mnvje&ust=1743782015772000&source=images&cd=vfe&opi=89978449&ved=0CBYQjRxqFwoTCJCi-rOcvIwDFQAAAAAdAAAAABAE

Question 3

Mx of glaucoma

Answer 3

Lie flat, face up.
pilocarpine eye drops (2% blue, 4%brown)
Acetozalamide (IV if vomiting)
topical beta blockers
Urgent opthalmology referral

Question 4

normal occular pressure

Answer 4

10-21mmHg

Question 5

Indication for lateral canthotomy

Answer 5

Blunt eye trauma with suspicion of retro-orbital haematoma

AND any of the following:
-reduced visual acuity
-Proptosis
-Relavant afferent pupillary defect
-Intraoccular pressure >40

OR CT findings of intraorbital compartment syndrome
-retrobulbar haematoma w/ proptosis
-tenting of orbit
stretched orbital nerve
-

Question 6

Ant. uveitis S&S

Answer 6

Painful red eye, worse with accommodation.
Irregular pupil
keratic precipitates (little dots on inner surface of the cornea)