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100+ Free OSAT OK128 Practice Questions

Pass your OSAT Blind/Visual Impairment (OK128) exam on the first try — instant access, no signup required.

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A TVI is communicating assessment results to a general education teacher who has limited background in visual impairment. The most effective approach is to:

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2026 Statistics

Key Facts: OSAT OK128 Exam

OK128

Official OSAT Test Code

CEOE Tests Page

80 + 1

Selected-Response + Constructed Response

CEOE OK128 Test Page

4h

Testing Time

CEOE OK128 Test Page

240

Scaled Passing Score

CEOE OK128 Test Page

$118

Current Test Fee

CEOE OK128 Test Page

20/20/32/13/15

Official Subarea Weighting Percentages

CEOE Field 128 Test Design and Framework

As of June 1, 2026, the official CEOE OK128 test page lists 80 selected-response questions and 1 constructed-response assignment, 4 hours of testing time within a 4 hour 15 minute appointment, a 240 scaled passing score, no provided reference materials, and a $118 fee. The framework weights the test as 20% understanding students with visual impairments, 20% assessment and IFSP/IEP development, 32% promoting student development and learning, 13% collaboration, and 15% case-study analysis. CEOE also states examinees must contact OSDE before registering.

Sample OSAT OK128 Practice Questions

Try these sample questions to test your OSAT OK128 exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Under IDEA, a child is determined eligible for special education under the category of 'visual impairment including blindness' only when the impairment, even with correction, does which of the following?
A.Reduces near visual acuity below 20/70 in the better eye
B.Adversely affects the child's educational performance
C.Causes total absence of light perception
D.Restricts the visual field to less than 60 degrees
Explanation: IDEA defines visual impairment including blindness as an impairment in vision that, even with correction, adversely affects a child's educational performance. Eligibility is functional and educational, not based on a fixed acuity or field threshold. This distinguishes the IDEA educational definition from the legal definition of blindness.
2The legal definition of blindness in the United States is best described as central visual acuity of 20/200 or less in the better eye with best correction, or which of the following field conditions?
A.A visual field of 20 degrees or less
B.A visual field of 60 degrees or less
C.Any loss of peripheral vision
D.Loss of color discrimination
Explanation: Legal blindness is defined as best-corrected central acuity of 20/200 or worse in the better eye, OR a visual field that subtends an angle no greater than 20 degrees (tunnel vision). This definition is used for benefits eligibility, not for educational programming decisions, which rely on functional vision.
3A teacher of students with visual impairments (TVI) supervises a paraprofessional who supports a student who is blind. Which action best reflects the TVI's professional responsibility for that paraprofessional?
A.Having the paraprofessional design the student's IEP goals independently
B.Providing training, modeling, and ongoing feedback on specialized techniques
C.Delegating all braille instruction to the paraprofessional
D.Avoiding observation so the paraprofessional can build autonomy
Explanation: The TVI is responsible for supervising, observing, and providing feedback to paraprofessionals, including training and modeling specialized techniques. The TVI remains accountable for instructional decisions while building the paraprofessional's skills. Direct braille instruction and IEP goal development remain the certified teacher's role.
4A TVI wants to identify Oklahoma and national resources that can support a family, classroom team, and transition-age student with visual impairment. Which action best reflects the TVI's professional role?
A.Limit recommendations to school-owned materials so services remain under district control
B.Provide curated referrals to appropriate agencies and organizations while explaining how each resource matches the student's needs
C.Ask the family to search independently so the school does not influence service choices
D.Refer only to medical providers because educational organizations are outside the TVI's role
Explanation: The OSAT framework expects TVIs to know agencies and organizations that provide specialized materials, resources, networking, and services for people with visual impairments. A strong referral is matched to the student's educational, family, and transition needs rather than presented as a generic list.
5A TVI suspects a 4-year-old shows signs of a previously unidentified visual impairment. According to standard referral procedures, what is the most appropriate first step?
A.Begin braille instruction immediately
B.Refer the child for a clinical eye examination and functional vision evaluation
C.Place the child directly in a residential school
D.Recommend the family delay any action until kindergarten
Explanation: When a visual impairment is suspected, the appropriate first step is referral for a clinical low vision/eye examination and a functional vision assessment to confirm and characterize the impairment. Diagnosis and functional data must precede any instructional or placement decisions, consistent with early identification and intervention practice.
6The structure of the eye that contains the highest concentration of cone photoreceptors and is responsible for sharp central vision is the:
A.Optic disc
B.Fovea
C.Sclera
D.Ciliary body
Explanation: The fovea, located at the center of the macula, has the highest density of cone photoreceptors and provides the sharpest central, detailed, and color vision. Damage to the macula or fovea, as in macular degeneration, causes loss of central acuity while peripheral vision may remain.
7A student has a documented eye condition that causes loss of peripheral vision while central acuity remains relatively intact, producing 'tunnel vision.' This pattern is most characteristic of:
A.Macular degeneration
B.Retinitis pigmentosa
C.Cataract
D.Amblyopia
Explanation: Retinitis pigmentosa is a progressive condition that typically destroys peripheral rod photoreceptors first, producing constricted peripheral fields (tunnel vision) and night blindness while sparing central vision until later stages. This field loss has major implications for orientation and mobility instruction.
8A young child consistently presses on or rubs the eyes, holds objects very close, and tilts the head when looking at materials. A TVI would most appropriately interpret these behaviors as:
A.Definitive proof of total blindness
B.Possible signs of a visual impairment warranting evaluation
C.Typical attention-seeking behavior to ignore
D.Evidence the child should skip a vision exam
Explanation: Behaviors such as eye pressing (the oculodigital sign), holding materials close, head tilting, and squinting can indicate a visual impairment and warrant a referral for evaluation. These observations are screening clues, not diagnoses, and should prompt clinical and functional vision assessment.
9Cortical (cerebral) visual impairment (CVI) differs from most ocular visual impairments primarily because CVI results from:
A.Clouding of the crystalline lens
B.Damage to the visual pathways or visual cortex of the brain
C.Abnormal curvature of the cornea
D.Increased intraocular pressure
Explanation: CVI is a neurological visual impairment caused by damage to the brain's visual pathways or visual cortex rather than to the eye itself. Students with CVI may have relatively normal eye structures yet show variable visual function, difficulty with visual complexity, and characteristic behaviors that respond to specialized intervention.
10Which statement best reflects how congenital (from birth) versus adventitious (later-onset) blindness affects concept development?
A.Age of onset has no effect on concept development
B.Adventitiously blind students may draw on prior visual concepts that congenitally blind students never formed
C.Congenitally blind students always develop concepts faster
D.Visual memory is irrelevant to learning after blindness
Explanation: Students who lose vision later (adventitious) can draw on a store of visual concepts and memories formed before vision loss, while congenitally blind students build concepts through nonvisual senses from the start. Understanding age and onset of vision loss helps the TVI plan concept development and instruction.

About the OSAT OK128 Exam

The OSAT Blind/Visual Impairment (OK128) exam is the Oklahoma subject-area assessment for educators preparing to teach students with visual impairments. The official CEOE framework measures knowledge of the human visual system, visual disorders, development and learning implications, low-vision devices, functional vision and learning media assessments, IFSP/IEP procedures, braille and literacy instruction, assistive technology, Expanded Core Curriculum skills, collaboration, legal and ethical responsibilities, and case-study analysis of student data.

Assessment

80 selected-response questions and 1 constructed-response assignment

Time Limit

4h 15m appointment (4h testing)

Passing Score

240 (scaled)

Exam Fee

$118 (Certification Examinations for Oklahoma Educators (CEOE) / Pearson Evaluation Systems)

OSAT OK128 Exam Content Outline

20% of test

Understanding Students with Visual Impairments

Human visual system terminology and structures; ocular and neurological visual disorders; causes, onset, progression, medications, and environmental factors; development and learning implications; optics; low-vision aids; environmental adaptations; and assistive technology that enhances functional vision.

20% of test

Assessing Students and Developing IFSPs/IEPs

Formal and informal assessment, screenings, nondiscriminatory practices, functional vision assessment, learning media assessment, family and background information, independent living and ECC evaluation, IFSP/IEP team roles, eligibility, FAPE, LRE, braille instruction, ophthalmological terminology, and progress monitoring.

32% of test

Promoting Student Development and Learning

Safe and supportive learning environments, routines, self-advocacy, UDL, multisensory instruction, accessible materials, communication and literacy skills, UEB and Nemeth knowledge, academic strategies, abacus, tactile graphics, electronic magnification, braille technology, social-emotional development, self-determination, independent living, vocational skills, sensory efficiency, and O&M prerequisite concepts.

13% of test

Working in a Collaborative Learning Community

Consultation and collaboration with families, school staff, related service providers, paraprofessionals, and community agencies; culturally and linguistically responsive communication; preschool through postsecondary transitions; TVI roles and responsibilities; legal and ethical issues; Oklahoma special education policies; ADA, Section 504, IDEA, and FERPA.

15% of test

Case Study: Analysis of Data to Identify and Address Student Needs

A constructed-response assignment requiring analysis of student profiles and assessment data, including academic, language, adaptive behavior, functional behavior, FVA, LMA, teacher observations, and student work, to identify academic and ECC needs and recommend evidence- or research-based strategies.

How to Pass the OSAT OK128 Exam

What You Need to Know

  • Passing score: 240 (scaled)
  • Assessment: 80 selected-response questions and 1 constructed-response assignment
  • Time limit: 4h 15m appointment (4h testing)
  • Exam fee: $118

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

OSAT OK128 Study Tips from Top Performers

1Use the official framework as a checklist: every competency from 0001 through 0014 can appear in either selected-response practice or case-analysis reasoning.
2Practice translating clinical information into educational implications: acuity, fields, contrast, glare, CVI, nystagmus, progressive conditions, medications, and age of onset all affect access differently.
3Know the difference between an FVA and an LMA, and be ready to explain how multiple data sources support literacy media and accommodation decisions.
4Study the ECC as instruction, not a slogan: independent living, sensory efficiency, O&M prerequisites, social interaction, recreation/leisure, career education, self-determination, assistive technology, and compensatory access can all be IEP needs.
5For case-study writing, cite each exhibit, name one academic need and one ECC need, recommend specific strategies, and explain the rationale using student data rather than generic best practices.
6Review legal and ethical duties in context: FAPE, LRE, braille instruction, Section 504, ADA, IDEA, FERPA, mandated reporting, confidentiality, and Oklahoma special education policies.

Frequently Asked Questions

How many questions are on the OSAT Blind/Visual Impairment (OK128) exam?

The current CEOE OK128 test page lists 80 selected-response questions and 1 constructed-response assignment. The selected-response section accounts for 85% of the test weighting and the case-study constructed response accounts for 15%.

How much time do I get for OK128?

The official test page lists a 4 hour 15 minute total appointment: 15 minutes for the CBT tutorial and nondisclosure agreement plus 4 hours of testing time.

What passing score do I need for OSAT OK128?

The official passing score for OSAT Blind/Visual Impairment (OK128) is 240 on the CEOE scaled-score reporting system.

How much does the OSAT Blind/Visual Impairment exam cost?

The current CEOE OK128 test page lists the test fee as $118. Fees can change, so candidates should verify the amount in their CEOE account during registration.

What content does OK128 cover?

The official framework has five subareas: understanding students with visual impairments; assessment and IFSP/IEP development; promoting student development and learning; working in a collaborative learning community; and case-study analysis of data to address student needs.

What is the OK128 constructed response?

The constructed response is a case-study task. CEOE directions ask candidates to analyze exhibits, cite evidence, describe one academic need and one ECC need, recommend research- or evidence-based strategies, and explain why each strategy is appropriate.