OCANZ LATEST EXAM UPDATED 2024 WITH VERIFIED QUESTIONS AND ANSWERS (GRADED A+)

OCANZ LATEST EXAM UPDATED 2024
WITH VERIFIED QUESTIONS AND
ANSWERS (GRADED A+)
Given a monovision presbyope of +5.00D (OU). The patient wants
to be able to see the computer at 67cm, what would the contact
lens script be for this patient? - ANSWER-
+6.50 one eye
How do you manage convergence excess, accomodative spasm? -
ANSWER-Issue plus RX
vision therapy, dot card
Leukocoria is one sign of retinoblastoma in children, what is the
next most indicative sign? (Strabismus, cataract and two others) -
ANSWER-Strabismus
An 85 year old patient wants to see the TV better, this patient has
ARMD, what would you advise? (Move 2x closer to the TV, move
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2x further away from the TV, 2x telescope or 2x reverse telescope)
- ANSWER-Move 2x closer to the TV
Which low vision device offers the largest working distance?
(Microscope, hand held telescope, stand magnifier or
telemicroscope) - ANSWER-hand held telescope
Treatment for pseudomonas? - ANSWERWhat is bests disease and what colour vision defect may it cause?
- ANSWER- Vitelliform dystrophy, or Best disease, is a hereditary
retinal dystrophy involving the
retinal pigment epithelium (RPE), and leads to a characteristic
bilateral yellow "egg- yolk" appearance of the macula
Blue/yellow
Lateral temporal visual field restriction occurs as a result of which
extra ocular muscle palsy? - ANSWER-6th nerve (abducens
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affecting the lateral rectus)
What is the most prominent side effect of suddenly stopping a
steroid eye drop? - ANSWER-You can get rebound inflammation
What is not required to be done at every follow up with Glaucoma?
Iops
Visual fields Goniscopy
Corneal thickness - ANSWER-Pachymetry (as it is for diagnosis
not management)
A contact lens wearer that is 25 years old, what is the most likely
cause of SPK? (Mucin balls, solution toxicity, tear film stability and
one other) - ANSWER-Tear film instability
What is Ketotifen used for? - ANSWER-antihistamine and mast cell
stabilizer
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Baseball hit in the eye, limited elevation of the eyes, what would
the cause be? - ANSWER-Blow out fracture
What is Kolleners rule in relation to colour vision? - ANSWER-outer
retinal diseases and media changes result in blue-yellow color
defects
inner retina, optic nerve, visual pathway, and visual cortex will
result in red-green defects.
(increased susceptibility of S-cones and rods to ischaemia and
oxidative damage, although S-cone loss is more noticeable due to
their lower density and their higher metabolic rate) (Kollners rule,
retinal disease will give a blue yellow defect and optic nerve
disease will give a red green defect but the exceptions are
glaucoma which will give a blue yellow defect and central cone
degeneration which will give a red green defect)
Which causes a red defect- red cap test: optic neuritis, Amd -
ANSWER-Optic neuritis