AOC AOC Diagnostic Testing and Instrumentation

Question 1

Which instrument is used in orthoptics to measure and treat strabismus by presenting different images to each eye simultaneously?

Accepted Answer

Synoptophore (major amblyoscope)

Answer

Slit lamp

Answer

Perimeter

Answer

Fundus camera

Question 2

When performing visual acuity testing in young children unable to read letters, which test is most commonly used?

Accepted Answer

Lea symbols or Teller acuity cards

Answer

Snellen chart

Answer

LogMAR chart

Answer

Color plate testing

Question 3

Which test uses a red glass placed before one eye to evaluate ocular alignment and measure diplopia?

Accepted Answer

Red glass test (Lancaster or Hess screen)

Answer

Cover test

Answer

Maddox rod test

Answer

Bagolini striated lens test

Question 4

The Maddox rod test is used primarily to measure which type of deviation?

Accepted Answer

Horizontal and vertical phorias

Answer

Vertical tropias only

Answer

Cyclodeviation only

Answer

Intermittent exotropia distance angle

Question 5

Visual field testing is performed in the orthoptic setting most commonly using which method to map peripheral function?

Accepted Answer

Confrontation field testing or automated perimetry

Answer

OCT imaging

Answer

Fundoscopy

Answer

Electroretinography

Question 6

Which chart design measures visual acuity on a logarithmic scale, making it preferred for research and low vision assessment?

Accepted Answer

LogMAR chart (e.g., ETDRS)

Answer

Snellen chart

Answer

Jaeger chart

Answer

Allen picture chart