Madhy pradesh Ophthalmic Assistant — Previous Year MCQs
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What is the primary purpose of anti-reflective coatings on lenses?
a. Reduce chromatic aberration
b. Increase lens durability
c. Enhance light transmission
d. Block ultraviolet radiation
Answer: c. Enhance light transmission -
In streak retinoscopy, what does rotating the streak 90 degrees achieve?
a. Switches to plane mirror mode
b. Measures cylindrical axis
c. Identifies spherical power
d. Changes the vergence of light
Answer: b. Measures cylindrical axis -
What happens to the refractive index of a material when the wavelength of incident light decreases?
a. It decreases
b. It remains constant
c. It depends on the material opacity
d. It increases
Answer: d. It increases -
Which measurement technique best identifies early glaucoma in retinal nerve fibre layer OCT analysis?
a. Clock hour analysis
b. NSTIN deviation
c. Average RNFL thickness
d. Minimum sector thickness
Answer: d. Minimum sector thickness -
Which analysis method best identifies early cone dysfunction in multispectral imaging–based color vision testing?
a. Assessing Chromatic Aberrations
b. Metameric matching
c. Analysis of spectral reflectance
d. Method of cone isolation
Answer: d. Method of cone isolation -
Which corrective strategy is most suitable for a patient with anisometropia exceeding 3.00 diopters?
a. Progressive addition lenses
b. Rigid gas permeable contact lenses
c. Monovision correction using contact lenses
d. Spectacle lenses with aspheric design
Answer: b. Rigid gas permeable contact lenses -
What is the most common conjunctival goblet cell alteration associated with early Stevens–Johnson syndrome?
a. Metaplasia
b. Hyperplasia
c. Nuclear enlargement
d. Completely absent
Answer: d. Completely absent -
A ray of light passes from air (n = 1.0) into glass (n = 1.5) at an angle of incidence of 30 degrees. What is the angle of refraction in the glass?
a. 20.0°
b. 18.2°
c. 21.5°
d. 19.5°
Answer: b. 18.2° -
A 60-year old patient has diffuse stellate keratic precipitates, heterochromia, and chronic anterior uveitis. Which diagnosis is most likely?
a. Fuchs heterochromatic iridocyclitis
b. Posner-Schlossman syndrome
c. Herpes uveitis
d. Sarcoidosis
Answer: a. Fuchs heterochromatic iridocyclitis -
In relation to the measured IOP, which pachymetry measurement requires the greatest adjustment?
a. 450 μm
b. 580 μm
c. 520 μm
d. 555 μm
Answer: a. 450 μm -
What is the advantage of dynamic retinoscopy?
a. Assessing media opacities
b. Measuring cylindrical axis
c. Identifying binocular vision anomalies
d. Detecting accommodative lag
Answer: d. Detecting accommodative lag -
What is the most effective treatment for contact lens–induced papillary conjunctivitis?
a. Make the quick transition to daily disposable lenses
b. Continue wearing contact lenses while cleaning them more frequently
c. Give topical steroids as prescriptions
d. Briefly stopping the use of contact lenses.
Answer: d. Briefly stopping the use of contact lenses -
What happens to the eye’s ability to focus when the lens becomes too thick or too thin?
a. The eye becomes more susceptible to astigmatism
b. The eye’s focus ability becomes impaired
c. The focal point moves closer to the retina
d. The eye’s accommodation ability improves
Answer: b. The eye’s focus ability becomes impaired -
Which optical phenomenon explains the color variations observed in thin soap films?
a. Diffraction
b. Interference
c. Dispersion
d. Polarization
Answer: b. Interference -
Which of the following statements regarding the retina’s Muller cells is FALSE?
a. They contain glycogen.
b. They form the external limiting membrane.
c. They provide structural support to the retina.
d. They are primarily involved in phototransduction.
Answer: d. They are primarily involved in phototransduction