Illinois Ophthalmic Medical Technologist
Certification Examination Practice
Questions And Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A |
Instant Download Pdf
1. Which instrument is primarily used to measure intraocular pressure?
A. Retinoscope
B. Phoropter
C. Tonometer
D. Slit lamp
The tonometer measures the pressure inside the eye, critical for
diagnosing glaucoma.
2. The Snellen chart is used to assess:
A. Color vision
B. Peripheral vision
C. Visual acuity
, D. Depth perception
Visual acuity testing determines the sharpness or clarity of vision
using standardized letters or symbols.
3. Which cranial nerve controls pupillary constriction?
A. Optic nerve (CN II)
B. Trochlear nerve (CN IV)
C. Oculomotor nerve (CN III)
D. Abducens nerve (CN VI)
The oculomotor nerve innervates the sphincter pupillae muscle,
controlling pupillary constriction.
4. Which of the following is a risk factor for cataract formation?
A. Young age
B. Diabetes mellitus
C. Short-sightedness
D. Low blood pressure
Diabetes can accelerate lens protein denaturation, increasing
cataract risk.
5. Fundus photography is primarily used to examine:
A. Cornea
B. Lens
C. Retina
D. Eyelid
, Fundus photography captures detailed images of the retina to assess
for pathology such as diabetic retinopathy or macular degeneration.
6. Which eye drop is used to dilate the pupil for examination?
A. Pilocarpine
B. Timolol
C. Tropicamide
D. Latanoprost
Tropicamide is a mydriatic agent that temporarily dilates the pupil
for fundoscopy or other examinations.
7. Amsler grid testing is used to detect:
A. Glaucoma
B. Cataracts
C. Macular degeneration
D. Strabismus
The Amsler grid helps detect central visual field defects associated
with macular degeneration.
8. Which technique is used to measure the curvature of the cornea?
A. Pachymetry
B. Tonometry
C. Keratometry
D. Retinoscopy
Keratometry measures the corneal curvature, important for fitting
contact lenses and refractive assessments.
, 9. In fluorescein angiography, fluorescein dye is injected to visualize:
A. Corneal surface
B. Optic nerve head
C. Retinal blood vessels
D. Lens transparency
Fluorescein angiography highlights retinal and choroidal circulation
for diagnosing vascular abnormalities.
10. The most common cause of bacterial conjunctivitis in adults is:
A. Streptococcus pneumoniae
B. Staphylococcus aureus
C. Pseudomonas aeruginosa
D. Haemophilus influenzae
Staphylococcus aureus is a common pathogen causing bacterial
conjunctivitis in adults.
11. Which type of lens is used to correct myopia?
A. Convex lens
B. Concave lens
C. Cylindrical lens
D. Bifocal lens
Concave lenses diverge light rays to correct nearsightedness.
12. What is the main purpose of an A-scan ultrasonography in
ophthalmology?
A. Evaluate corneal thickness
Certification Examination Practice
Questions And Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A |
Instant Download Pdf
1. Which instrument is primarily used to measure intraocular pressure?
A. Retinoscope
B. Phoropter
C. Tonometer
D. Slit lamp
The tonometer measures the pressure inside the eye, critical for
diagnosing glaucoma.
2. The Snellen chart is used to assess:
A. Color vision
B. Peripheral vision
C. Visual acuity
, D. Depth perception
Visual acuity testing determines the sharpness or clarity of vision
using standardized letters or symbols.
3. Which cranial nerve controls pupillary constriction?
A. Optic nerve (CN II)
B. Trochlear nerve (CN IV)
C. Oculomotor nerve (CN III)
D. Abducens nerve (CN VI)
The oculomotor nerve innervates the sphincter pupillae muscle,
controlling pupillary constriction.
4. Which of the following is a risk factor for cataract formation?
A. Young age
B. Diabetes mellitus
C. Short-sightedness
D. Low blood pressure
Diabetes can accelerate lens protein denaturation, increasing
cataract risk.
5. Fundus photography is primarily used to examine:
A. Cornea
B. Lens
C. Retina
D. Eyelid
, Fundus photography captures detailed images of the retina to assess
for pathology such as diabetic retinopathy or macular degeneration.
6. Which eye drop is used to dilate the pupil for examination?
A. Pilocarpine
B. Timolol
C. Tropicamide
D. Latanoprost
Tropicamide is a mydriatic agent that temporarily dilates the pupil
for fundoscopy or other examinations.
7. Amsler grid testing is used to detect:
A. Glaucoma
B. Cataracts
C. Macular degeneration
D. Strabismus
The Amsler grid helps detect central visual field defects associated
with macular degeneration.
8. Which technique is used to measure the curvature of the cornea?
A. Pachymetry
B. Tonometry
C. Keratometry
D. Retinoscopy
Keratometry measures the corneal curvature, important for fitting
contact lenses and refractive assessments.
, 9. In fluorescein angiography, fluorescein dye is injected to visualize:
A. Corneal surface
B. Optic nerve head
C. Retinal blood vessels
D. Lens transparency
Fluorescein angiography highlights retinal and choroidal circulation
for diagnosing vascular abnormalities.
10. The most common cause of bacterial conjunctivitis in adults is:
A. Streptococcus pneumoniae
B. Staphylococcus aureus
C. Pseudomonas aeruginosa
D. Haemophilus influenzae
Staphylococcus aureus is a common pathogen causing bacterial
conjunctivitis in adults.
11. Which type of lens is used to correct myopia?
A. Convex lens
B. Concave lens
C. Cylindrical lens
D. Bifocal lens
Concave lenses diverge light rays to correct nearsightedness.
12. What is the main purpose of an A-scan ultrasonography in
ophthalmology?
A. Evaluate corneal thickness
