Vision and Ophthalmology Diagnostic Testing and Equipment

Question 1

Optical coherence tomography (OCT) uses which type of light to generate cross-sectional retinal images?

Accepted Answer

Near-infrared light

Answer

Fluorescent light

Answer

X-rays

Answer

Ultrasound

Question 2

The Goldmann applanation tonometer measures IOP by:

Accepted Answer

Flattening a known area of the cornea (3.06 mm diameter)

Answer

Indenting the cornea with a plunger

Answer

Shooting an air puff at the cornea

Answer

Measuring the acoustic properties of the eye

Question 3

Fluorescein angiography (FA) is primarily used to evaluate:

Accepted Answer

Retinal and choroidal vasculature

Answer

Corneal topography

Answer

Lens clarity

Answer

Optic nerve fiber layer thickness

Question 4

Which visual field defect is associated with a pituitary adenoma compressing the optic chiasm?

Accepted Answer

Bitemporal hemianopia

Answer

Ipsilateral monocular blindness

Answer

Left homonymous hemianopia

Answer

Central scotoma

Question 5

A-scan ultrasonography in ophthalmology is primarily used for:

Accepted Answer

Measuring axial length for IOL calculations

Answer

Imaging the optic nerve

Answer

Detecting retinal tears

Answer

Measuring corneal thickness

Question 6

Corneal topography measures which property of the cornea?

Accepted Answer

Curvature across the corneal surface

Answer

Thickness at all points

Answer

Endothelial cell count

Answer

Transmittance of UV light