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How do varying levels of visual acuity affect daily living and tasks?

Monique Chabot, OTD, OTR/L, SCEM, CLIPP, CAPS

July 1, 2024



How do varying levels of visual acuity affect daily living and tasks?


Visual acuity, ranging from near-normal vision to near-total blindness, significantly impacts an individual's ability to perform daily tasks. For those with visual acuity between 20/20 and 20/60, reading and near-to-normal vision activities are generally manageable, often requiring reading glasses or holding materials closer.

As visual acuity decreases to around 20/80, magnifiers become necessary, and distinguishing objects relies heavily on contrast. At this level, recognizing facial expressions also becomes challenging. Around 20/60, it is generally recommended that individuals cease driving due to safety concerns.

When visual acuity reaches 20/200, performing various tasks and maintaining mobility becomes increasingly difficult, posing a higher risk of collisions or tripping. At 20/500, reading continuous text becomes problematic because the significant need for magnification makes it challenging to see the full text for scanning and reading purposes. Near-total blindness, characterized by visual acuity from 20/1250 to no light perception, renders vision unreliable or nonexistent, severely limiting an individual's ability to perform most visual tasks without significant assistance.

This Ask the Expert is an edited excerpt from the course, Environmental Modifications for Adults with Low Vision, presented by Monique Chabot

monique chabot

Monique Chabot, OTD, OTR/L, SCEM, CLIPP, CAPS

Monique Chabot, OTD, OTR/L, SCEM, CLIPP, CAPS is an Associate Professor of Occupational Therapy at Widener University. She is also a PhD candidate in the Architecture and Design Research program at Thomas Jefferson University-East Falls with a dissertation focusing on kitchen design and smart technology to support functional cognition while aging in place. She specializes in smart technology and home modifications for aging in place. Her clinical work continues to be with various nonprofit agencies in the Philadelphia region providing home modifications to various populations. Dr. Chabot also is a co-facilitator of the AOTA Environmental Modifications Community of Practice.

Related Courses

Environmental Modifications for Adults with Low Vision
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