BRS Low Vision Aids & Devices 3

Question 1

A BRS is assessing a patient's reading speed with a low vision device. Which measure is the MOST clinically relevant indicator of functional reading success?

Accepted Answer

Reading speed of at least 40–60 words per minute

Answer

A reading speed of 40–60 words per minute is considered a functional threshold that allows practical reading of everyday materials.

Question 2

When prescribing a microscopic spectacle lens for near work, what is the primary trade-off compared to a hand magnifier at the same power?

Accepted Answer

Working distance is greatly reduced, requiring the patient to hold material very close

Answer

Microscopic lenses require very short working distances (often a few centimeters), which can be ergonomically challenging but frees both hands.

Question 3

Which feature of a head-mounted video magnifier (e.g., eSight, IrisVision) offers an advantage over traditional optical devices for patients with low vision?

Accepted Answer

They allow real-time digital image processing with adjustable contrast and color

Answer

Head-mounted electronic magnifiers offer adjustable contrast, color inversion, and digital zoom, providing customizable visual enhancement not possible with fixed optical lenses.

Question 4

A patient with macular degeneration and 20/400 acuity wants to watch television at 10 feet. Which device category is MOST appropriate?

Accepted Answer

Bioptic telescope spectacles

Answer

Bioptic telescope spectacles provide the distance magnification needed to view a television across a room, unlike near-focused magnifiers.

Question 5

What is the purpose of a typoscope when used as a low vision aid?

Accepted Answer

To reduce glare and isolate lines of text for easier reading

Answer

A typoscope is a black card with a reading window that reduces glare from white paper and isolates one line of text, improving contrast and reducing visual confusion.

(BRS) Blind Rehabilitation Specialist Certification Practice Test

(BRS) Blind Rehabilitation Specialist Certification Practice Test

BRS Low Vision Aids & Devices 3