6 year-old boy cycloplegic retinoscopy +3.00 and +3.00. Patients has
20 prism base in. Vision of 6/6 both eyes. Stereoacuity of 100 sec.
a. What is the type of deviation?
b. What would you prescribe?
c. Is it a tropia or phoria?
Draw the ray diagram and use it to explain its uses.
Humphrey visual field with superior quadrantonopia. One blind spot
is visible and the other not so visible. What type of perimetry is this
and the possible diagnosis?
Visual evoked potential of both eyes, one delayed and one normal. What
is this test and what does it show?
Combine A and B scan of an elevated posterior lesion. There is only
one spike in the A scan and decreasing reflectivity after the second spike.
The B scan shows dome-shaped elevation. Look like choroidal melanoma.
Colour photography and angiography. Extensive RPE atrophy. Early hyperfluorescence
resembling RPE atrophy. Describe your findings.
Hess's chart. What is this test? What is the finding? Look like Brown's
CT scan showing swelling in the lacrimal fossa. What is the anatomical
Test the visual field. Patient has unilateral constricted visual field.
Asked about the differential diagnosis.
Cover test and ocular motility test on a child. I did a quick cover
test and move quickly to the ocular motility. The patient has Duane's syndrome.
A lot of candidates diagnosed sixth nerve palsy. In this case, it is important
to perform a quick cover test as most of the signs are in ocular motility.
Hand neutralization of glasses
Direct ophthalmoscopy. Glaucomatous cupping and ARMD
Indirect ophthalmoscopy using head light. Old chorioretinal scar. Differential
diagnosis. Magnification differences between 20 and 28 D. Show me how to
use the indentation. Uses of Cobalt blue etc. Ask to draw a diagram.
Traumatic mydriasis with faint subconjunctival haemorrhage.
Slit-lamp examination. Healed penetrating injury with iris and lens
involvement. Asked to demonstrate scleral scatter, retroillumination and
specular microscopy. The uses of various filter.
The centre appeared to run out of patients and I was asked to refract
an ophthalmology SHO!
He was new to ophthalmology (yet to pass mrcophth part I) and could
not help me (or pretending not to know his prescription) much about the
refraction. Nonetheless, the refraction appeared straight forward. He was
a nice co-operative chap and did not accommodate. Retinoscopy showed bilateral
myopia with astigmatism. The right eye is about -7.00 and the left is -4.00.