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Print Size Comparisons

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Print Comparisons

By: Carmen Willings
teachingvisuallyimpaired.com
​Updated October 23, 2017

I use this environmental print comparison regularly to help team members understand the comparison between the acuity a student is able to visually access and how it relates to font sizes. Keep in mind that it is important to use the lowest font size a student is able to easily, accurately, and fluidly read for longer passages. Although a student may have a threshold for a smaller font, if they cannot read it with accuracy and fluency, it will not be an efficient font size for sustained reading.

Near Vision Snellen Test Chart

The following is a list of environmental print that correlates to the acuity on a Near Vision Snellen Test Chart.
Jaeger
M
Acuity
Print Size Comparison
Example
Value
.4
20/20
 3 pt font
medicine bottle labels
J1
.5
20/25
4 pt font
mail order catalogs
J2
.6
20/30
5 pt font
small print Bible; footnotes
J3
.8
20/40
6 pt font
want ads; telephone directory
J5
1.0
20/50
8 pt font
small column newsprint
J7
1.2
20/60
10 pt font
paperback books; newsprint
J10
1.3
20/65
12 pt font
Grade 4-7 children's books
-
1.6
20/80
14 pt font
Grade 1-3 children's books
-
2.0
20/100
16 pt font
computer display type
-
2.15
20/108
18 pt font
Pre-K/K Children's books
J12
2.5
20/125
20 pt font
Books for ages 7-8
J14
3.0
20/150
24 pt font
Large Print Books
J15
4.0
20/200
33 pt font
Sub-headlines; children's books
J16
8.0
20/400
66 pt font
Newspaper headlines
Information in the above chart was taken from the "Near Vision Test Chart" by the Low Vision Clinic, N.C. Memorial Hospital Dept. of Ophthalmology, University of North Carolina School of Medicine, Chapel Hill, NC.

Functional Distance Acuity Approximations

The following is is a list of Functional Distance Acuity Approximations at a distance of 20 feet.
Gross Sizes (Observable overall size of an item)
Snellen Equivalent
Minimum Sizes (separation, detail sizes)
Snellen Equivalent
3/8"
20/20
1/16"
20/20
7/16"
20/25
.
.
1/2"
20/30
1/8"
20/30
3/4"
20/40
3/16"
20/40
1"
20/60
1/4"
20/60
1 1/2"
20/80
5/16"
20/80
1 3/4"
20/100
7/16"
20/100
2"
20/120
1/2"
20/120
2 7/16"
20/140
9/16"
20/140
2 3/4"
20/160
11/16"
20/160
3 1/4"
20/180
.
.
3 1/2"
20/200
13/16"
20/200
4 1/4"
20/225
.
.
5 1/4"
20/300
5/16"
20/300
6 3/4"
20/350
1"
20/350
7 1/8"
20/400
1 3/16"
20/400
10 1/2"
20/600
1 1/2"
20/600
12"
20/700
1 5/8"
20/700

Approximate Functional Vision Acuity

An approximation of functional visual acuity can be determined for students that are non-verbal or otherwise unable to perform for standard acuity assessment by comparing the size of the object the student can identify to the distance from the student. Although this can't be used as an exact measurement, it can provide you with an idea of the student's acuity.

Distance from the student:

Size of Object
2 feet
4 feet
6 feet
8 feet
20 feet
1/4"
20/200
20/100
20/67
20/50
20/20
1/2"
20/400
20/200
20/133
20/100
20/40
3/4"
20/600
20/300
20/200
20/150
20/60
1"
20/800
20/400
20/267
20/200
20/80
Topor, I. (2004). Approximate functional visual acuity for different sizes of objects and distances. Chapel Hill, NC: Early Intervention Training Center for Infants and Toddlers With Visual Impairments, FPG Child Development Institute, UNC-CH. Visual Conditions Module 06/06/04 S4 Handout H

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Purchase the TVI's Guide to Teaching the ECC Complete Set and immediately unlock the pages within the ECC Complete Set Bonus including bonus printables, interactive sensory stories, interactive matching activities, interactive choice making activities, job task box activities and MORE! This is my way of continuing to support you and say "Thank you!" for choosing to purchase the Complete Set. 

Conducting a FVLMA Recorded Presentation

$25.00

This presentation provides a walk-through of the process and steps of conducting a Functional Vision Evaluation and Learning/Reading Media Assessment. Key points include interpreting the eye report, materials to use in the assessment, conducting interviews and observations as well as strategies for direct assessment and writing a professional and thorough report that is informative to all audiences. Next steps are also covered including the importance of a low vision assessment, determining the need for additional assistive technology and implications for service. 


Objectives:


  • Effectively interpret eye reports
  • Select appropriate materials for conducting the FVELMA
  • Develop strategies for assessment,
  • Write professional FVLMA reports that include key components
  • Apply information gained to determine next steps

Includes:


  • Recorded PowerPoint Show Presentation
  • Transcript
  • Presentation handout for note taking
  • Printables & Links to Resources discussed in presentation


Request a Certificate of Completion

To receive a certificate of completion for 1 contact hour (1 CE hour credit), complete the short Conducting the FVLMA quiz on Google Forms and receive a score of at least 80%. Don't worry. If you don't pass, you can look over your notes or re-watch the presentation and retake the test! If you have any difficulty accessing the form, please contact me so we can troubleshoot!


System Requirements:

Presentations are recorded PowerPoint presentations. You must be able to access PowerPoint to view the PowerPoint presentation. Please note that the presentation pages are closed member pages available to individuals who have purchase access to the presentation. 


*Please contact me if you need to purchase using a purchase order. I am happy to help guide you in the process of adding Teaching Students with Visual Impairments as an approved vendor for your school or program or you can visit the product support page for information on using a PO.

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Picture of Typometer Kostenlos
Recently, Carson Cochran, program manager at GIMC, shared a typometer pdf that was printed on clear acetate with me. By printing it on clear acetate, you can place the typometer over print to determine the font size. You can find a number of these available on Pinterest or by doing a Google search. Pictured is the Typometer that Carson provided me. What a great tool! 

Picture of C-Thru Flexible Typesetter Ruler
​A typesetter ruler, like this C-Thru Flexible Typesetter’s Ruler, is made of clear plastic and has leading, type size, point rule, pica, point and inch scales. It will include font samples and rules of different sizes and more. Place it over your printed piece and match up the text in your sample with those printed on the ruler in order to get an estimate of the font size and line spacing and size of any rules in the design.  APH's Newt kit includes this typesetter ruler! 

Thank you for visiting!
The mission of Teaching Students with Visual Impairments is to provide all persons involved in education students who are blind or visually impaired with the necessary resources to help each student become successful members of their communities and to equip those in the visual impairment field with resources to meet the wide range of needs of the students they serve. ​
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    • ECC Instructional Resources >
      • TVI's Guide Complete Set Bundle
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      • Thematic Keyboarding & Braille Fluency Worksheets
      • Visual Efficiency & Magnifier Fluency
      • Task Box Activities
      • Vocabularky Cards & Checklists
      • Interactive Sensory Stories
      • Interactive Matching Activities
      • Untitled
    • Purchase Recorded Presentations >
      • Presentation Complete Set of 16
      • Foundations of Teaching the ECC
      • Itinerant Teaching Strategies & Tips
      • Strategies & Activities for SIDPID
      • Strategies & Activities for MIMO
      • Job Tasks for Jobs, Career & Life
      • Strategies & Activities for Standard Course of Study
      • Accommodations for BLVI
      • Accessible Content for BLVI
      • Using Themes to Teach the ECC
      • Tips for Being a Physically Fit TVI
      • Conducting a FVLMA
      • Developing SMARTER Goals
      • Determining Service Intensity Using the VISSIT
      • Selecting the Right AT
      • The Art of Teaching the ECC
      • Activities to Teach the ECC
    • Job Postings
    • Product Support
  • Jobs
    • Post a Job
    • TVI, Jersey City, NJ
    • O&M Specialist, Jersey City, NJ
    • Consulting Teacher for Blind/Low Vision, Idaho
    • TVI or Dual TVI/COMS, North Carolina
    • TVI Portland & Brunswick, Maine
    • Assistant Director Edu. Services for Blind & VI, Maine
  • Paid Member Pages
    • Recorded Presentations
    • Complete Set Bonus
    • Interactive Sensory Stories
    • Interactive Matching Activities
    • Interactive Visual Discrimination Activities
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