Visual Impairment

Orientation, mobility, braille, low vision tools, and the Expanded Core Curriculum

Why this brief

Students with visual impairment span a range — students with low vision who use enlarged print or magnification, students who use braille, students who use both, students with progressive vision loss, students who are deafblind. The team supporting any one of them likely includes a Teacher of the Visually Impaired (TVI) — a credentialed specialist with master's-level training in vision pedagogy — and often an Orientation and Mobility (O\&M) specialist. Paras working with these students implement the TVI's plans across the day, support orientation and mobility in school, manage adaptive equipment, and adapt instructional materials.

This brief covers the range of visual impairment, the specialists involved, the Expanded Core Curriculum (ECC) that VI education adds to standard academics, common adaptive tools, environmental design, and the para's specific role. Deafblindness is treated separately in brief 07.13.

| |

| :-: |

| LanguageThe National Federation of the Blind explicitly prefers identity-first language — "blind person," "blind student" — and "low vision" or "visual impairment" for less-than-total loss. Some individuals prefer person-first; ask. Avoid "sight-impaired" or "visually challenged." Cross-ref 15.03 on disability identity and language. |

1\. The range of students under this label

Visual impairment is graded clinically by visual acuity (how clearly the student sees) and visual field (peripheral vision):

Low vision — visual acuity worse than 20/70 in the better eye after correction; some functional vision.

Legally blind — visual acuity worse than 20/200 in the better eye after correction, or visual field of 20 degrees or less.

Functionally blind — limited or no useful vision for educational tasks; primary reading medium is typically braille or audio.

Totally blind — no light perception.

Functionally, students span:

Students with low vision using enlarged print, high contrast materials, magnification — often in mainstream classrooms with itinerant TVI services.

Students whose primary reading medium is braille — often in specialized programs or mainstream with substantial TVI support.

Students who are dual-medium readers (some braille, some print).

Students with progressive vision loss — some who started with sight and are losing it; their educational picture evolves.

Students with cortical visual impairment (CVI) — vision loss originating in the brain rather than the eye; a different functional picture.

Students with VI plus additional disabilities (Deaf+blind students; students with VI and ID; students with VI and physical disabilities).

The team's work and the para's role differ across these. Read the IEP and talk with the TVI before assuming.

2\. The specialists involved

2.1 Teacher of the Visually Impaired (TVI)

Master's-level credentialed specialist in vision education. The TVI:

Conducts functional vision assessments and learning media assessments.

Designs the student's vision-specific instruction (braille, low vision tools, ECC).

Adapts materials — converting print to braille, large print, audio.

Trains team members on vision-specific strategies.

Coordinates with the eye care provider, family, and school team.

In most school-based work, TVIs are itinerant — traveling between schools, with many students on caseload.

2.2 Orientation and Mobility (O\&M) specialist

Separate credential focused on orientation (knowing where you are in space) and mobility (moving safely through space). The O\&M specialist:

Teaches the student to navigate environments — school, neighborhood, public transportation.

Teaches use of the white cane, sighted guide technique, and other mobility tools.

Conducts environmental assessments — what's safe, what's a barrier.

Coordinates with the team on physical environment considerations.

2.3 Other specialists

Eye care provider — ophthalmologist or optometrist; manages medical aspects.

Low vision specialist — sub-specialty optometrist who prescribes magnification and other low vision aids.

Accessible Educational Materials specialists — who produce braille, large print, audio.

Assistive technology specialists — for accessible tech tools.

3\. The Expanded Core Curriculum (ECC)

The Expanded Core Curriculum is the body of knowledge and skills that sighted students typically acquire through observation but that students with VI must be taught explicitly. The ECC has nine areas:

Compensatory or functional academic skills, including communication modes (braille, large print, audio).

Orientation and mobility.

Social interaction skills (often acquired visually by sighted peers; explicitly taught for students with VI).

Independent living skills (cooking, cleaning, money management — the day-to-day skills that develop differently without vision).

Recreation and leisure skills.

Career education.

Use of assistive technology.

Sensory efficiency skills (using vision, touch, hearing effectively for learning).

Self-determination.

ECC instruction often happens alongside core academics. The TVI typically owns ECC programming; the para may support implementation across the school day.

| |

| :-: |

| ECC matters for outcomesStudents with VI who don't receive explicit ECC instruction often have substantial gaps in skills sighted peers picked up incidentally — independent living, social pragmatics, self-advocacy. Adult outcomes for blind people in the U.S. are substantially worse than for sighted peers (employment rates particularly), and the gap traces partly to ECC instruction not happening at the depth and consistency students need. |

4\. Reading and writing media

4.1 Braille

Braille is a tactile reading system using raised-dot patterns. It is a distinct literacy medium, not a translation of print. Students who learn braille acquire the same literacy skills as sighted peers — phonological awareness, decoding, fluency, comprehension, writing — but through a different sensory channel.

Braille uses two main contractions:

Uncontracted (Grade 1) — letter-by-letter; used for early instruction.

Contracted (Grade 2) — uses contractions for common letter combinations and whole words; standard in everyday use.

Other braille codes:

Nemeth code — math and science.

Music braille — for music notation.

Computer braille — for code and technical text.

Reading braille is not slower per se when fluent; many braille readers read at competitive rates. Early acquisition is a substantial undertaking and benefits from intensive, daily instruction starting young.

4.2 Print

Students with low vision often read print, sometimes with magnification or enlargement:

Standard print with optical aids (handheld magnifiers, video magnifiers, telescopes).

Large print — typically 18pt to 36pt depending on need.

High contrast — black on white or white on black.

Specific fonts the student finds accessible.

4.3 Audio

Many students with VI use audio extensively:

Audiobooks (Bookshare, Learning Ally — both free for qualifying students).

Screen readers — JAWS, NVDA, VoiceOver — that read screen content aloud.

Text-to-speech tools.

4.4 Dual media

Many students use multiple media — print for short, high-contrast tasks; audio for longer reading; braille for math and notation. The Learning Media Assessment (LMA) determines what's appropriate.

5\. Low vision tools

Students with usable but limited vision benefit from a variety of tools.

5.1 Optical aids

Handheld magnifiers — for short-distance, single-use magnification.

Stand magnifiers — sit on the page; useful for reading.

Video magnifiers (CCTVs) — camera-based magnification with adjustable contrast and color.

Telescopes — handheld or spectacle-mounted; for distance viewing (board, presentations).

Spectacle-mounted bioptic systems.

5.2 Non-optical aids

Large print materials.

High-contrast materials — black on yellow is often easier than black on white.

Bold-line paper for writing.

Reading stands that bring material closer.

Task lighting — adjustable, glare-free.

Sun shields, visors, or tinted lenses for light-sensitive students.

5.3 Digital aids

Screen magnification (built into devices).

High-contrast display modes.

Text-to-speech.

Accessible fonts.

5.4 Limits of low vision tools

Even with the right tools, low-vision students often experience visual fatigue. Sustained reading is tiring; eye strain affects performance across the day. Built-in rest and pacing matter.

6\. Orientation and Mobility

Two distinct concepts:

6.1 Orientation

Knowing where you are in space, where you want to go, and how to get there. Built through exploration, mapping, environmental cues, and explicit instruction.

6.2 Mobility

Moving through space safely and efficiently. Tools and techniques include:

White cane — the long cane is the primary mobility tool for blind individuals; identifies obstacles, terrain changes, and depth.

Sighted guide — a trained sighted person walks slightly ahead, the student holds their elbow.

Service dog (guide dog) — for older students, after specific training.

Pre-cane or adaptive mobility devices — for younger children or students with multiple disabilities.

Trailing — using a hand to follow a wall or surface.

Echolocation — some blind individuals develop sensitivity to sound reflections; emerging area.

6.3 School environment for O\&M

Predictable layout — the student learns the building over time. Major changes (renovations, room reassignments) require re-orientation.

Tactile and audio landmarks — different floor textures, distinctive sounds.

Accessible signage — braille at appropriate locations (room numbers, restrooms, exits).

Clear paths — no obstacles, especially at head height.

Doors fully open or fully closed — partially open doors are head-height hazards.

Stairs and changes in elevation marked tactilely.

6.4 The para's role in O\&M

Don't grab. The student decides whether to take your arm; if they want sighted guide, they reach to you.

Walk slightly ahead and to the side, not behind.

Describe what's coming — "step down," "door on your right."

Don't assume the student can't navigate independently. Many can; over-helping can stunt development.

Coordinate with the O\&M specialist about which routes the student is being taught and where they should be using their cane.

Watch for hazards but don't catastrophize — students need to develop their own competence.

7\. Academic adaptations

7.1 Materials adaptation

This is significant work, often shared between TVI, para, and family. Common adaptations:

Print converted to braille (TVI typically does this; specialized embossers required).

Print enlarged.

Visual content described — graphs, charts, diagrams need verbal or tactile representations.

Manipulatives for math made tactilely distinct.

Tactile graphics — raised-line drawings, swell paper, 3D models — for science, geography, art.

Audio versions of texts.

7.2 Lead time

Materials adaptation often requires substantial lead time — particularly for braille. Sending the para a Spanish worksheet 5 minutes before class with "can you make this accessible" is not workable; adapted materials need to be planned days or weeks ahead. The TVI typically coordinates.

7.3 Visual instruction adaptation

In real-time instruction:

Describe what's on the board — don't just point at "this" or "that."

Read aloud what's written.

Pause for the student to read braille or use magnification.

Use specific language ("the bar graph shows...") rather than vague references ("as you can see...").

Verbalize visual demonstrations — "I'm pouring the liquid from the beaker into the flask."

7.4 Testing

Tests in accessible format — braille, large print, audio.

Extended time — reading braille or using audio is slower than print for many tasks.

Tactile graphics where applicable.

Scribing accommodation if writing is slow.

Quiet, low-distraction environment for audio-based testing.

8\. Social access

Social development without vision differs from sighted peers' development:

Facial expressions, body language, and visual cues that sighted students absorb are inaccessible without specific instruction.

Group dynamics happen partly through eye contact, glances, posture — invisible to a blind student.

Peer interactions sometimes default around the student because peers don't know how to include them.

Bullying and exclusion can happen in ways the student doesn't see directly but feels.

Romantic and sexual development happens without typical visual learning — explicit social skills instruction is part of ECC.

8.1 Para's role

Facilitate peer interaction without dominating.

Describe social context ("three students at your table; Maria's reading; Marcus and Diego are talking").

Coach peers in inclusion — "Hey, ask Marcus if he wants to be in your group."

Step back when peers engage.

Don't be the social bottleneck.

Watch for exclusion or bullying.

9\. Assistive technology

AT for VI is robust and often essential. Common categories:

Screen readers (JAWS, NVDA, VoiceOver) — read screen content aloud.

Screen magnification (ZoomText, built-in OS magnification).

Refreshable braille displays — small electronic devices that present braille via raised pins.

BrailleNote / braille notetakers — portable devices for note-taking, reading, browsing.

Optical Character Recognition (OCR) — converts printed text to digital, then to audio or braille.

Smartphone accessibility — VoiceOver (iOS) and TalkBack (Android) make phones fully accessible.

Specialized apps — Seeing AI, Be My Eyes, Aira — that connect blind users with sighted assistance via AI or human volunteers.

AT competence is itself part of the ECC and takes years to develop. Students don't pick this up incidentally.

10\. Family considerations

Families of children with VI navigate distinctive terrain:

Many families are sighted and learning blindness alongside their child.

Some families are blind themselves and bring deep knowledge.

Many families have spent years in medical systems; some have grief about diagnosis or progressive loss.

Some families navigate decisions about specialty programs (state schools for the blind) vs. mainstream education.

Cochlear implant analogues exist in vision (some retinal prosthesis development) but are far less common; most VI families don't face surgical decisions.

Adult outcome data is sobering — employment rates for blind adults remain low — and families often feel acute pressure about ECC and self-determination instruction.

Listen first. Honor the family's decisions about communication and learning approaches. Don't bring assumptions.

11\. Equity considerations

Underdiagnosis — VI in students of color and students from low-income families is sometimes diagnosed later, with less follow-up specialty care.

Itinerant TVI services often understaffed — caseloads of 30+ students across multiple buildings is common, which means each student gets less than ideal time.

Specialty programs (state schools for the blind, regional programs) vary in availability and quality across states.

AT access — high-end AT is expensive; access varies substantially by district resources and family resources.

Adult outcomes — employment rates for blind adults in the U.S. are around 40%, substantially below sighted peers; the school years' work matters for adult life.

12\. What not to do

Don't grab. The student decides whether they want help.

Don't move things in the student's environment without telling them.

Don't speak louder; visual impairment is not hearing loss.

Don't use vague references ("this," "that," "over there").

Don't apologize for the world being visual; describe it.

Don't pretend the student can see what they can't; honesty serves them.

Don't pity or marvel; the student's life is their life.

Don't assume "low vision" means more capability than "blind"; both are functional categories with their own demands.

Don't substitute personal preference for the IEP-prescribed media.

Don't skip ECC because academic content fills the day.

13\. Common pitfalls

Treating VI as a vision problem to fix rather than a learning condition to support.

Skipping materials adaptation — "this should be fine for them."

Visual instruction without verbal description.

Letting the student rely on the para for orientation rather than developing independent O\&M.

Excluding the student from group work because it's "easier."

Letting peers form social groups around the student rather than with them.

Skipping ECC because it's not academic.

Not coordinating with the TVI and O\&M specialist.

Improvising adaptations without TVI input.

Treating progressive vision loss as static.

14\. Resources

Major organizations

National Federation of the Blind (NFB) — nfb.org — Largest blind-led civil rights organization.

American Council of the Blind — acb.org

American Foundation for the Blind (AFB) — afb.org — Research and advocacy.

American Printing House for the Blind (APH) — aph.org — Major producer of accessible educational materials.

Educational

Perkins School for the Blind — perkins.org — Resources for educators and families.

National Federation of the Blind — Jernigan Institute — nfb.org/programs-services

Texas School for the Blind and Visually Impaired — tsbvi.edu — Strong educator resources.

Paths to Literacy — pathstoliteracy.org — Literacy for students with VI.

Materials

Bookshare — bookshare.org — Free for qualifying students; massive accessible library.

Learning Ally — learningally.org — Audio textbooks.

National Library Service for the Blind and Print Disabled — loc.gov/nls — Free Library of Congress program.

Cross-references

Brief 07.13 — Deafblindness — this library

Brief 10.04 — Assistive Technology Overview — this library

Brief 15.03 — Disability Identity and Language — this library

Page of