Elscores 8/18/2024 6:16:34 PM
OCANZ Written Questions and Correct
Answer
What is Stargardt disease
~: is the most common form of inherited juvenile macular degeneration.
Wife calls requesting details on husbands eye test. Do you: get verbal consent, refuse call, get
written consent
~: get written consent
Diabetic recently diagnosed unstable. Refraction reveals significant myopic shift compared to
last visit 12 months ago. Which is the most appropriate course of action:
a/ prescribe specs & report to GP
b/ Refer to Ophthalmologist,
c/ Discuss findings with GP before prescribing Rx,
d/ Obtain info on current blood glucose levels
~: c/ Discuss findings with GP before prescribing Rx,
The main cause of amblyopia in a child: anisometropia >2, accommodative eso, intermittent
exo
~: anisometropia >2,
Which of the following can match Illuminant c: Incandescent, Halogen, Flourescent, sodium
, Elscores 8/18/2024 6:16:34 PM
~: Fluorescent
25 years old enquiring her suitability for laser refractive surgery. Which of the following is
NOT essential pre-operatively:
a/ Tonometry,
b/ Tear film stability
c/ pupil size,
d/ Gonio
~: d/ Gonio
What is Kolleners rule in relation to colour vision?
~: 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
~: Optic neuritis
, Elscores 8/18/2024 6:16:34 PM
Lissamine green; what does it stain?
~: Lissamine green stains dead and degenerate cells, yet does not stain healthy epithelial cells.
(NaFl permeates into the intercellular space associated with any epithelial cellular disruption)
Is gonio indicated with Hyphaema?
~: no
What is prenticies rule?
~: P (prism dioptres =c (decentration in cm) x F(power of lens in dioptres)
What is the most preventable cause of AMD?
~: Smoking
15 years old attends eye examination, best Va's R6/6, L 6/24 (told ambloypic). Which
occuptation should he NOT pursue:
a/ Train driver,
B/ construction worker,
c/ Electrician,
d/ Dentist
~: a/ Train driver
OCANZ Written Questions and Correct
Answer
What is Stargardt disease
~: is the most common form of inherited juvenile macular degeneration.
Wife calls requesting details on husbands eye test. Do you: get verbal consent, refuse call, get
written consent
~: get written consent
Diabetic recently diagnosed unstable. Refraction reveals significant myopic shift compared to
last visit 12 months ago. Which is the most appropriate course of action:
a/ prescribe specs & report to GP
b/ Refer to Ophthalmologist,
c/ Discuss findings with GP before prescribing Rx,
d/ Obtain info on current blood glucose levels
~: c/ Discuss findings with GP before prescribing Rx,
The main cause of amblyopia in a child: anisometropia >2, accommodative eso, intermittent
exo
~: anisometropia >2,
Which of the following can match Illuminant c: Incandescent, Halogen, Flourescent, sodium
, Elscores 8/18/2024 6:16:34 PM
~: Fluorescent
25 years old enquiring her suitability for laser refractive surgery. Which of the following is
NOT essential pre-operatively:
a/ Tonometry,
b/ Tear film stability
c/ pupil size,
d/ Gonio
~: d/ Gonio
What is Kolleners rule in relation to colour vision?
~: 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
~: Optic neuritis
, Elscores 8/18/2024 6:16:34 PM
Lissamine green; what does it stain?
~: Lissamine green stains dead and degenerate cells, yet does not stain healthy epithelial cells.
(NaFl permeates into the intercellular space associated with any epithelial cellular disruption)
Is gonio indicated with Hyphaema?
~: no
What is prenticies rule?
~: P (prism dioptres =c (decentration in cm) x F(power of lens in dioptres)
What is the most preventable cause of AMD?
~: Smoking
15 years old attends eye examination, best Va's R6/6, L 6/24 (told ambloypic). Which
occuptation should he NOT pursue:
a/ Train driver,
B/ construction worker,
c/ Electrician,
d/ Dentist
~: a/ Train driver
