BRS Low Vision Aids & Devices 2

Question 1

A patient with a central scotoma reports difficulty reading despite using a stand magnifier. Which adaptation is MOST likely to improve their reading performance?

Accepted Answer

Train eccentric viewing using preferred retinal locus

Answer

Training the patient to use their preferred retinal locus (PRL) through eccentric viewing allows them to bypass the central scotoma for more effective reading.

Question 2

Which type of low vision device provides the widest field of view for a patient needing distance magnification?

Accepted Answer

Galilean telescope

Answer

Galilean telescopes provide a wider field of view compared to Keplerian telescopes, making them preferable when field of view is a priority over image quality.

Question 3

A patient uses a 4× stand magnifier. What is the approximate equivalent viewing distance (EVD) for this device?

Accepted Answer

6.25 cm

Answer

EVD = 100 / (magnification × 4) = 100/16 = 6.25 cm for a 4× stand magnifier using the standard formula.

Question 4

When fitting a patient with absorptive lenses for photophobia, the specialist should prioritize which characteristic?

Accepted Answer

Spectral transmission and UV protection

Answer

Absorptive lenses for photophobia must be evaluated by their spectral transmission curve and UV-blocking properties to reduce glare and protect the retina.

Question 5

Which illumination strategy is MOST effective for a patient with retinitis pigmentosa who experiences difficulty in low-light environments?

Accepted Answer

Provide high-intensity task lighting aimed directly at work surface

Answer

Patients with RP have reduced rod function and benefit most from high-intensity, well-directed task lighting to maximize remaining cone function.

(BRS) Blind Rehabilitation Specialist Certification Practice Test

(BRS) Blind Rehabilitation Specialist Certification Practice Test

BRS Low Vision Aids & Devices 2