Test 15 1. In colour vision testing:a. the illumination should be equivalent to the morning daylight in2. Indocyanine green:
b. Farnsworth-Munsell hue 100 test uses 84 coloured discs
c. the discs of Farnsworth-Munsell hue 100 tests have the same
brightness and saturation.
d. D-15 is a modified Farnsworth-Munsell (FM) hue 100
e. Ishihara is most useful for picking up congenital red-green defect
a. is a fluorescent substance3. The following are true about light:
b. absorbs light with a wavelength of 805 nm
c. emits infrared light
d. is absorbed by the retinal pigment epithelium.
e. leaks out of the choroidal circulation readily.a. visible light has a wavelength between 400 to 780nm4. The following are true about visual testing in children:
b. colour of an object is determined by the wavelength
absorbed by its surface.
c. red colour has a longer wavelength than green colour
d. things appear more blue to aphakic than phakic patient
e. blue filter is useful in filtering harmful light to human eye.a. Catford drum usually over-estimates the visual acuity..
b. STYCAR rolling ball test relies on the observation of
the subject's pursuit movement.
c. Cardiff cards uses preferential looking.
d. Kay's picture tests may be used by children 2 years of age
e. five different letters are used in Sheridan-Gardiner test5. Myopic shift occurs with:a. nuclear sclerosis
b. anterior movement of the lens or implant
c. flattening of the corneal surface
d. use of cycloplegic
e. use of pilocarpine.
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