Vision Loss

By: Michelle and Trent

Vision is one of our most important avenues for the acquisition and assimilation of knowledge.

We rely on our eyes to guide us around our surroundings, inform us through the written word, and give us pleasure and relaxation.

Vision Loss Never had sight Normal Vision – turning to partially

or totally blind Gradual or sudden loss Restricted field of vision

Definitions Blindness (legal) – includes both acuity

and field of vision

Partial sight – able to use vision as a primary source of learning (low vision)

Classification Refractive

Hyperopia Myopia Astigmatism Cataracts

Classification Muscle Disorders

NystagmusStrabismus -Esotropia -ExtropiaAmblyopia

Classification Receptive Eye

ProblemsOptic atrophyRetinitis

pigmentosaRetinal

detachmentRetinopathy of

prematurity

Causation(Genetic Disorders)

Albinism (photophobia)

Retinoblastoma Microphthalmia Hydrocephalus Anophthalmia Glaucoma

Causation(Acquired Disorders)

Xeropthalmia Cortical Visual Impairment Trachoma

Characteristics

Vision Loss- At birth-Before age 5-After age 5

Characteristics(Intelligence)

Difficulty in understanding spacial concepts

Lack a general knowledge of the world and their surroundings

Characteristics(Speech and Language)

=

BUNNY

Characteristics(Academic Achievement)

Difficulty organizing thoughts

Decoding Comprehension Excessive Absences

Characteristics(Social Development)

Social/Emotional

Body language

Exclusion

Popular Misconception

People with vision loss can hear or smell things that people with normal vision cannot perceive

Never been validated

EducationalSupports and Services

(Assessment)

IEP team must focus on how the student uses remaining vision

Promote use of remaining vision

EducationalSupports and Service

Mobility Training and daily living skills

Instructional Content

Communication Media

Least Restrictive Environment